# Best Blockchain Security Software ## How Many Blockchain Security Software Products Does G2 Track? **Total Products under this Category:** 42 ### Category Stats (Aug 2026) - **Average Rating:** 4.41/5 The average rating of products in this category, based on all submitted ratings _Last updated: August 05, 2026_ ## How Does G2 Rank Blockchain Security Software Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 100+ Authentic Reviews - 42+ Products - Unbiased Rankings G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category. ### [Dfns](https://www.g2.com/products/dfns/reviews) DFNS is a core banking platform for digital assets. It gives banks, fintechs, and enterprises the infrastructure to run financial operations and build products onchain, provisioning wallets, securing keys, governing transactions, and servicing tokenized assets across blockchains, the way a traditional core banking system underpins accounts, payments, and ledgers in conventional finance. The platform addresses a structural gap. The core systems financial institutions run today were not built for assets that settle in seconds, on public networks, with cryptographic ownership. Rather than replacing an organization's existing core banking system, hardware security modules, or compliance stack, DFNS provides the layer that lets those systems operate onchain. It is delivered as composable modules through one REST API and SDKs, so an organization can adopt a single capability or the full platform, and it connects to more than 100 blockchains and third party services through a single integration surface. Over 400 institutional and fintech clients run on DFNS, including Standard Chartered, First Abu Dhabi Bank, IBM, Stripe, Circle, Kraken, and Apex Group. Roughly 1% of all global stablecoin payment volume settles through the platform. DFNS is used across digital asset custody, banking, embedded wallets, stablecoin payments, trading operations, tokenization, and treasury and asset management. The platform is organized into modules, including: 1. Wallet-as-a-Service — create, index, and manage wallets across 100+ blockchains and third party services, as one account layer for custody, payments, trading, treasury, and tokenization. 2. Transaction Management — format, approve, decode, simulate, sign, broadcast, and track transactions at scale, built for high volume flows and complex approval logic. 3. Treasury Management and Tokenization Engine — manage onchain treasury across entities, currencies, and networks, and issue and service tokenized assets across their full lifecycle. 4. Policy Engine and Governance Engine — enforce limits, allowlists, quorums, roles, and ABI aware approvals before every signature, and cryptographically verify every intent, policy, and signature against a state the customer controls, deployed within their own perimeter. 5. Key Management — run keys across MPC, HSM, TEE, or BYOK models, with production grade protocols built for resilience, scale, and no single point of failure. A defining characteristic is that authentication and transaction signing are handled as separate functions, and policies are evaluated before any signature is produced, giving organizations programmable control over who can move which assets, under what conditions. Keys are operated so that a complete private key is never assembled in one place. DFNS can be deployed as managed SaaS, hybrid, or fully on premises. The deployment model changes while the modules and controls stay the same, allowing key material and infrastructure to be placed according to regulatory and operational requirements. It integrates with existing systems including core banking platforms, custody and compliance tooling, and payment rails, and organizations typically adopt it to add digital asset capabilities to existing products, to meet requirements under frameworks such as MiCAR and DORA, or to consolidate wallet, transaction, governance, and settlement operations onto one platform. **Average Rating:** 4.7/5.0 **Total Reviews:** 52 #### Who Is the Company Behind Dfns? - **Seller:** [Dfns](https://www.g2.com/sellers/dfns) - **Company Website:** www.dfns.co - **Year Founded:** 2020 - **HQ Location:** Paris, FR - **Twitter:** @dfnsHQ 4,156 Twitter followers - **LinkedIn® Page:** [linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=f72ff91bf188c27891e1d0423aebf221974c7afb28f067f9ff10997c1d4692dd&secure%5Burl%5D=https%3A%2F%2Flinkedin.com%2Fcompany%2Fdfnshq&secure%5Burl_type%5D=linkedin_company_website) 87 employees on LinkedIn® #### Who Uses This Product? - **Who Uses This:** CEO - **Top Industries:** Financial Services, Information Technology and Services - **Company Size:** 85% Small, 12% Medium #### What Do G2 Reviewers Say About Dfns? _AI-generated summary from verified user reviews_ ##### Pros - Users appreciate the **great customer support** from Dfns, enhancing their experience and confidence in the service. - Users praise Dfns for its **ease of use** , making setup and integration seamless and efficient for operations. - Users value the **comprehensive features** of Dfns, appreciating its seamless integrations and consistent updates for enhanced functionality. - Users appreciate the **easy integrations** of Dfns, allowing for seamless project delivery and saving valuable time. - Users commend Dfns for its **strong built-in security** and seamless integration of blockchain technology for wallet protection. ##### Cons - Users note the **missing features** of Dfns, wishing for more user-friendly options and additional useful APIs. - Users face a **steep learning curve** due to the complex API and disorganized wallet management. - Users find the **dashboard impractical** and note UX issues related to high security and missing features. - Users find the **poor usability** of Dfns challenging, with complex processes for signing and managing wallets and policies. - Users express concerns about **integration issues** , particularly with limited USDT support hindering operations in various markets. #### What Are Recent G2 Reviews of Dfns? **["Highly Customizable, Friendly UX with Responsive Support and Flat-Fee Pricing"](https://www.g2.com/survey_responses/dfns-review-13173453)** **Rating:** 5.0/5.0 stars _— Ganesh M._ [Read full review](https://www.g2.com/survey_responses/dfns-review-13173453) **["Scaling with Confidence Using DFNS"](https://www.g2.com/survey_responses/dfns-review-13127559)** **Rating:** 5.0/5.0 stars _— Jordan P._ [Read full review](https://www.g2.com/survey_responses/dfns-review-13127559) ### [Hyperledger](https://www.g2.com/products/hyperledger/reviews) Hyperledger is a collaborative effort created to advance blockchain technology by identifying and addressing important features for a cross-industry open standard for distributed ledgers that can transform the way business transactions are conducted globally. **Average Rating:** 4.1/5.0 **Total Reviews:** 15 #### Who Is the Company Behind Hyperledger? - **Seller:** [The Linux Foundation](https://www.g2.com/sellers/the-linux-foundation) - **Year Founded:** 2015 - **HQ Location:** San Francisco, CA - **Twitter:** @hyperledger 299 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=4ae3326831bdd1ebb5b8c717e0c33f341635783bb13e2fcf140bad61bd6f7ca4&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F10851358%2F&secure%5Burl_type%5D=linkedin_company_website) 89 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 56% Small, 25% Large #### What Are Recent G2 Reviews of Hyperledger? **["One of the trusted private Blockchain Network"](https://www.g2.com/survey_responses/hyperledger-review-4154716)** **Rating:** 4.5/5.0 stars _— Karan C._ [Read full review](https://www.g2.com/survey_responses/hyperledger-review-4154716) **["Get to know more about Hyperledger"](https://www.g2.com/survey_responses/hyperledger-review-4722688)** **Rating:** 4.0/5.0 stars _— Krishnakant B._ [Read full review](https://www.g2.com/survey_responses/hyperledger-review-4722688) ### [Storj](https://www.g2.com/products/storj/reviews) Storj is an open-source distributed cloud storage platform based on blockchain technology where anyone can sell their extra hard drive space. **Average Rating:** 4.5/5.0 **Total Reviews:** 11 #### Who Is the Company Behind Storj? - **Seller:** [Storj Labs](https://www.g2.com/sellers/storj-labs) - **Year Founded:** 2014 - **HQ Location:** Atlanta, Georgia - **Twitter:** @storjproject 1,219 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=06f7fac6ee4c240d8f0b8b2598134d4626f2e231db234d6181338a58d0a51747&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F3839986%2F&secure%5Burl_type%5D=linkedin_company_website) 34 employees on LinkedIn® #### Who Uses This Product? - **Top Industries:** Non-Profit Organization Management - **Company Size:** 82% Small, 9% Medium #### What Are Recent G2 Reviews of Storj? **["Free, Decentralize, S3 Compatible Block Storage"](https://www.g2.com/survey_responses/storj-review-6724123)** **Rating:** 4.5/5.0 stars _— Ajay R._ [Read full review](https://www.g2.com/survey_responses/storj-review-6724123) **["Good, Cheap and Sluggish"](https://www.g2.com/survey_responses/storj-review-5171794)** **Rating:** 4.5/5.0 stars _— Chukwudi I._ [Read full review](https://www.g2.com/survey_responses/storj-review-5171794) #### What Are G2 Users Discussing About Storj? - [How much can you make with Storj?](https://www.g2.com/discussions/how-much-can-you-make-with-storj) - [Is Storj coin good?](https://www.g2.com/discussions/is-storj-coin-good) - [Is Storj a good crypto?](https://www.g2.com/discussions/is-storj-a-good-crypto) - [What blockchain does Storj use?](https://www.g2.com/discussions/what-blockchain-does-storj-use) ### [MADANA](https://www.g2.com/products/madana/reviews) MADANA ‚Äì Securely bridging the gap between data and insights We are a tech Startup from Berlin utilizing various new technologies, such as Blockchain technology, in order to enable future data ecosystems. Our patent-pending solution enables privacy-preserving data analysis, which is a major breakthrough in data science that allows participants to establish a data market while preserving Privacy by Design. We enable companies to make better use of data and acquire more unique insights through the use of privacy enhancing technologies. We simply refer to it as #PrivTech. More information on https://www.madana.io **Average Rating:** 4.3/5.0 **Total Reviews:** 6 #### Who Is the Company Behind MADANA? - **Seller:** [MADANA](https://www.g2.com/sellers/madana) - **Year Founded:** 2017 - **HQ Location:** Berlin, DE - **Twitter:** @MADANA\_HQ 2,752 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=c5d4813c4c04249868b8d129678c433a545f26b49a40f251a66311c0f23ea2a9&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fmadana.io%2F&secure%5Burl_type%5D=linkedin_company_website) 3 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 50% Large, 50% Medium #### What Are Recent G2 Reviews of MADANA? **["a reliable technology"](https://www.g2.com/survey_responses/madana-review-7549589)** **Rating:** 4.0/5.0 stars _— Henry B._ [Read full review](https://www.g2.com/survey_responses/madana-review-7549589) **["controlled cyber threats"](https://www.g2.com/survey_responses/madana-review-9596329)** **Rating:** 5.0/5.0 stars _— David N._ [Read full review](https://www.g2.com/survey_responses/madana-review-9596329) ### [CUBE3.AI](https://www.g2.com/products/cube3-ai/reviews) CUBE3.AI is a real-time fraud prevention platform focused on stopping scams before funds move. Using proprietary AI models, CUBE3.AI helps businesses detect and prevent fraud across accounts, wallets, smart contracts, and transactions – protecting revenue, reducing chargebacks, and minimizing financial losses. Our technology doesn’t just respond to fraud – it anticipates and prevents it, giving teams the intelligence they need to act earlier and protect users from scams and financial abuse. **Average Rating:** 5.0/5.0 **Total Reviews:** 5 #### Who Is the Company Behind CUBE3.AI? - **Seller:** [CUBE3.AI](https://www.g2.com/sellers/cube3-ai) - **Year Founded:** 2022 - **HQ Location:** Palo Alto, US - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=91d9e8bd88390ffb341a7f6b712dc4fd71b2c26f5610884b2509e1de2ae60fe8&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fcube3ai&secure%5Burl_type%5D=linkedin_company_website) 52 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Small #### What Are Recent G2 Reviews of CUBE3.AI? **["API very easy to integrate with and multiple blockchains"](https://www.g2.com/survey_responses/cube3-ai-review-10576596)** **Rating:** 5.0/5.0 stars _— Bernardo S._ [Read full review](https://www.g2.com/survey_responses/cube3-ai-review-10576596) **["Effortless Crypto Crime Prevention – Saved Our Team Hours of Compliance"](https://www.g2.com/survey_responses/cube3-ai-review-10036544)** **Rating:** 5.0/5.0 stars _— Hugo C._ [Read full review](https://www.g2.com/survey_responses/cube3-ai-review-10036544) ### [Guardtime KSI](https://www.g2.com/products/guardtime-ksi/reviews) Ultimately, blockchains are just tools used to solve customer problems. Guardtime’s mission in life is to leverage the tools we have built, work with partners and build the highest quality enterprise solutions. **Average Rating:** 4.6/5.0 **Total Reviews:** 8 #### Who Is the Company Behind Guardtime KSI? - **Seller:** [Guardtime](https://www.g2.com/sellers/guardtime) - **Year Founded:** 2007 - **HQ Location:** Tallinn - **Twitter:** @Guardtime 2,009 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=5c15d1b24a95b1461b2bfb593c8ca7b0b658be283bddfd33131d40f9fbf91d03&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F1042597%2F&secure%5Burl_type%5D=linkedin_company_website) 99 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 63% Medium, 25% Small #### What Do G2 Reviewers Say About Guardtime KSI? _AI-generated summary from verified user reviews_ ##### Pros - Users value the **open tamper-proofing method** of Guardtime KSI, enhancing data security and compliance with verifiable records. - Users commend Guardtime KSI for its **open tamper-proofing method** , enhancing data integrity and security compliance. - Users value Guardtime KSI for its **open tamper-proof method** , enhancing data integrity and compliance significantly. - Users appreciate the **enhanced privacy** features of Guardtime KSI, boosting data security and customer trust. ##### Cons - Users find the **complex implementation** of Guardtime KSI requires significant time and effort during initial setup. - Users find the **difficult learning process** of Guardtime KSI challenging, especially without prior blockchain knowledge. - Users find the **difficult setup** of Guardtime KSI time-consuming and requiring significant effort for initial configuration. #### What Are Recent G2 Reviews of Guardtime KSI? **["Interoperability reduces interferences"](https://www.g2.com/survey_responses/guardtime-ksi-review-10387590)** **Rating:** 4.5/5.0 stars _— Thai B._ [Read full review](https://www.g2.com/survey_responses/guardtime-ksi-review-10387590) **["Reduction of forensic investigations"](https://www.g2.com/survey_responses/guardtime-ksi-review-10370625)** **Rating:** 4.0/5.0 stars _— Moi T._ [Read full review](https://www.g2.com/survey_responses/guardtime-ksi-review-10370625) ### [Tokeny T-Rex Platform](https://www.g2.com/products/tokeny-t-rex-platform/reviews) The T-REX platform is a user friendly solution that allows asset owners to digitally and compliantly issue, allocate and manage security tokens, whilst providing an improved and highly transferable service for their investors. **Average Rating:** 3.9/5.0 **Total Reviews:** 5 #### Who Is the Company Behind Tokeny T-Rex Platform? - **Seller:** [Tokeny](https://www.g2.com/sellers/tokeny) - **Year Founded:** 2017 - **HQ Location:** Luxembourg, LU - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=c59227911e76c88874eafd8bd8aacd87e69a0371e2a2b2928a8bf107a448f48c&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Ftokeny%2F&secure%5Burl_type%5D=linkedin_company_website) 40 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 67% Small, 33% Medium #### What Do G2 Reviewers Say About Tokeny T-Rex Platform? _AI-generated summary from verified user reviews_ ##### Pros - Users value the **easy-to-use design** of Tokeny T-Rex, simplifying the process for creating and sharing security tokens. - Users value the **robust security measures** of Tokeny T-Rex, ensuring protection against cyber attacks and enhancing trust. - Users value the **compliance features** of Tokeny T-Rex, ensuring adherence to regulations during security token transactions. - Users commend the **excellent customer support** of Tokeny T-Rex Platform, appreciating its availability and assistance. - Users appreciate the **easy integrations** with existing systems, enhancing daily use and overall efficiency. ##### Cons - Users face **compatibility issues** due to limited adoption, affecting trading opportunities on the Tokeny T-Rex Platform. - Users find that **integration with third party solutions** is challenging, impacting functionality and user experience. - Users note the **limited features** of Tokeny T-Rex, which may restrict trading opportunities and overall functionality. - Users express **security concerns** regarding Tokeny T-Rex, highlighting issues with managing sensitive financial information. - Users note the **complexity of the technology** behind Tokeny T-Rex, making it challenging to fully grasp its functionalities. #### What Are Recent G2 Reviews of Tokeny T-Rex Platform? **["The Compliant Tokenization Platform"](https://www.g2.com/survey_responses/tokeny-t-rex-platform-review-10361080)** **Rating:** 5.0/5.0 stars _— Suraj K._ [Read full review](https://www.g2.com/survey_responses/tokeny-t-rex-platform-review-10361080) **["Manage your assets in one place"](https://www.g2.com/survey_responses/tokeny-t-rex-platform-review-9172785)** **Rating:** 4.0/5.0 stars _— Krunal A._ [Read full review](https://www.g2.com/survey_responses/tokeny-t-rex-platform-review-9172785) ### [BitFury](https://www.g2.com/products/bitfury/reviews) BitFury is a fully integrated Bitcoin Blockchain security and infrastructure provider. **Average Rating:** 4.6/5.0 **Total Reviews:** 10 #### Who Is the Company Behind BitFury? - **Seller:** [Bitfury](https://www.g2.com/sellers/bitfury) - **Year Founded:** 2011 - **HQ Location:** Amsterdam, NL - **Twitter:** @BitfuryGroup 20,817 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=a4c844d93240dd65d49523afc60541fd7fe0191ec645100b28396f205ace6ff7&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F5178019&secure%5Burl_type%5D=linkedin_company_website) 87 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 60% Small, 30% Medium #### What Are Recent G2 Reviews of BitFury? **["Trusted platform to keep crypto assets"](https://www.g2.com/survey_responses/bitfury-review-7965654)** **Rating:** 4.5/5.0 stars _— Gaurang A._ [Read full review](https://www.g2.com/survey_responses/bitfury-review-7965654) **["Very complete & secure platform to move assets across Blockchain technology"](https://www.g2.com/survey_responses/bitfury-review-7199370)** **Rating:** 5.0/5.0 stars _— Nicolás G._ [Read full review](https://www.g2.com/survey_responses/bitfury-review-7199370) ### [BlockNotary](https://www.g2.com/products/blocknotary/reviews) BlockNotary Timestamp notarizes any media file, generating publicly verifiable receipt of its origin, date, authenticity, and integrity, without exposing its contents. **Average Rating:** 4.7/5.0 **Total Reviews:** 3 #### Who Is the Company Behind BlockNotary? - **Seller:** [Block Notary](https://www.g2.com/sellers/block-notary) - **Year Founded:** 2016 - **HQ Location:** United States - **Twitter:** @blocknotary 205 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=d5c625b453e5890f76cc3583b7e2eb5dfec540895e280ace901ea01a8ab70be1&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F10780253&secure%5Burl_type%5D=linkedin_company_website) 2 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 67% Small, 33% Medium #### What Are Recent G2 Reviews of BlockNotary? **["Blockchain based e-Notary system"](https://www.g2.com/survey_responses/blocknotary-review-7392516)** **Rating:** 4.5/5.0 stars _— shankar b._ [Read full review](https://www.g2.com/survey_responses/blocknotary-review-7392516) **["ease of interviews"](https://www.g2.com/survey_responses/blocknotary-review-7646509)** **Rating:** 4.5/5.0 stars _— Andrew R._ [Read full review](https://www.g2.com/survey_responses/blocknotary-review-7646509) ### [Authlink](https://www.g2.com/products/authlink-authlink/reviews) Authlink is a blockchain-powered platform designed to digitally manage product ownership and enhance brand protection. By assigning unique digital identities to physical products, Authlink enables brands, certifying agencies, and consumers to participate in a secure, trust-free ecosystem. This system ensures product authenticity, facilitates efficient supply chain management, and fosters continuous engagement between brands and their customers. Key Features and Functionality: - Digital Product Identity: Assigns unique, verifiable digital identities to physical products, allowing for easy tracking and authentication. - Immutable Certificates: Provides brands and institutions with an intuitive dashboard to register products and generate tamper-proof certificates, ensuring product provenance and ownership. - Owner Vault: Offers a secure mobile application for product owners to store, manage, share, and transfer their digital assets and certificates conveniently. - Blockchain Integration: Utilizes a decentralized network to create a transparent and secure chain of information regarding product history and authenticity. - API Services: Seamlessly integrates with existing enterprise resource planning and customer relationship management systems through API-based services. Primary Value and Solutions: Authlink addresses critical challenges in product authenticity and ownership management by leveraging blockchain technology. It provides brands with robust tools to combat counterfeiting, enhances supply chain transparency, and strengthens customer trust. For consumers, Authlink offers a secure and user-friendly platform to verify product authenticity and manage ownership records, thereby enhancing their overall purchasing experience. **Average Rating:** 4.3/5.0 **Total Reviews:** 2 #### Who Is the Company Behind Authlink? - **Seller:** [Authlink](https://www.g2.com/sellers/authlink) - **HQ Location:** Bengaluru, IN - **Twitter:** @authlinknetwork 316 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=3066b0d64553c51ce6b6534d585845ba28a5466ee61681a91f7d5063396d1c07&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fauthlinknetwork%2F&secure%5Burl_type%5D=linkedin_company_website) 2 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 50% Small, 50% Medium #### What Are Recent G2 Reviews of Authlink? **["Digital Product Management"](https://www.g2.com/survey_responses/authlink-review-7442966)** **Rating:** 4.0/5.0 stars _— Verified User in Consumer Services_ [Read full review](https://www.g2.com/survey_responses/authlink-review-7442966) **["Authlink Team has some amazing talent in Security and Software Architecture."](https://www.g2.com/survey_responses/authlink-review-7388645)** **Rating:** 4.5/5.0 stars _— Riya M._ [Read full review](https://www.g2.com/survey_responses/authlink-review-7388645) ### [Solidcheck](https://www.g2.com/products/solidcheck/reviews) Solidcheck is a digital asset risk and compliance assessment platform offering automated live monitoring and assessments across thousands of digital assets and protocols, delivering 24/7 compliance and security. It replaces static, spreadsheet-based reviews with a unified SaaS dashboard that continuously tracks governance changes, admin key rotations, code upgrades, mint/burn events, hacks, and suspicious activity across multiple chains. When a contract changes, Solidcheck automatically triggers reassessments, updates its patented DARA© risk score, and surfaces AI-guided recommendations so asset profiles are never outdated. Custodians and financial institutions use Solidcheck to bulk onboard and monitor thousands of contracts, cut manual diligence time, and move from reactive checks to proactive defense. With real-time alerts, API-driven workflows, and MiCA‑aligned, audit-ready reporting, Solidcheck transforms digital asset compliance into a dynamic security layer that protects billions in assets. **Average Rating:** 5.0/5.0 **Total Reviews:** 2 #### Who Is the Company Behind Solidcheck? - **Seller:** [softstack GmbH](https://www.g2.com/sellers/softstack-gmbh) - **Year Founded:** 2017 - **HQ Location:** Flensburg, DE - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=19775d9eaec176206ddbc14a1c9bc488ef131445a3d0b082bd0459f074a81338&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fsoftstack&secure%5Burl_type%5D=linkedin_company_website) 11 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Medium #### What Are Recent G2 Reviews of Solidcheck? **["Groundbreaking for CASP Compliance Teams"](https://www.g2.com/survey_responses/solidcheck-review-12375613)** **Rating:** 5.0/5.0 stars _— Madison T._ [Read full review](https://www.g2.com/survey_responses/solidcheck-review-12375613) **["Turns Licensing into MiCA Compliance—Saving Time, Money, and Risk"](https://www.g2.com/survey_responses/solidcheck-review-12408310)** **Rating:** 5.0/5.0 stars _— Verified User in Financial Services_ [Read full review](https://www.g2.com/survey_responses/solidcheck-review-12408310) ### [Civic](https://www.g2.com/products/civic/reviews) At Civic, we enable organizations to build strongly authenticated, AI-driven workflows. With our flagship product, Civic Nexus, we remove the technical barriers that keep business teams from leveraging advanced capabilities—all while maintaining essential security guardrails. We also make it possible for organizations to power sign-in anywhere: inside apps, across MCP servers, and behind assistants like Civic Nexus. Our mission is to help businesses harness AI efficiencies without the burden of managing credentials or infrastructure. Our flagship product, Civic Nexus, is where AI and operations come together. With Nexus, teams can securely connect their tools and data so AI can move from generating insights to taking real action — automating repetitive tasks, generating reports, uncovering insights from data, and more. Nexus automatically applies your organization’s authentication and access controls, ensuring every workflow stays compliant and secure. More about Nexus: —Instant connectivity: With Nexus, your team can connect major platforms (e.g., GitHub, Slack, Dropbox, Notion, etc) via a unified interface. —Minimal setup, high payoff: You can go from sign-up to tool access in seconds using the built-in chat interface. —Secure and controlled: All integrations are anchored in authentication, authorization, and audit trails. Your credentials remain hidden and actions are governed. —Built for ops teams: MarketingOps, RevOps, SalesOps, and more can all benefit from Nexus’s ability to automate end-to-end workflows without bottlenecks. **Average Rating:** 4.6/5.0 **Total Reviews:** 5 #### Who Is the Company Behind Civic? - **Seller:** [Civic Technologies](https://www.g2.com/sellers/civic-technologies) - **Year Founded:** 2015 - **HQ Location:** San Francisco, US - **Twitter:** @civickey 118,027 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=bcf69592de6082c86bf449ae9167c4e7cc1996d12b4f230fde39bb09c552309f&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fcivic-technologies%2F&secure%5Burl_type%5D=linkedin_company_website) 36 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 80% Small, 20% Medium #### What Do G2 Reviewers Say About Civic? _AI-generated summary from verified user reviews_ ##### Pros - Users love Civic for its **ease of use** , allowing quick setup and seamless integration with various login options. - Users love the **easy setup** of Civic, getting live authentication in just minutes with minimal hassle. - Users praise Civic for its **seamless API integration** , enabling rapid setup and comprehensive support for various login options. - Users value the **convenience** of Civic's quick and secure authentication, allowing them to focus on product development. - Users appreciate the **seamless embedded wallet support** of Civic, enhancing their experience across Web2 and Web3. ##### Cons - Users find the **limited features** in Civic frustrating as critical options are still under development and not yet available. - Users report **poor customer support** from Civic, which hampers their experience with the product's features. - Users express concern over the **lack of security documentation** , highlighting potential risks from malicious activities. - Users note occasional **software bugs** in Civic, but find them manageable as long as they don't cause major disruptions. #### What Are Recent G2 Reviews of Civic? **["Auth deployed in minutes for web2 or web3 projects"](https://www.g2.com/survey_responses/civic-review-11490816)** **Rating:** 4.5/5.0 stars _— Savian B._ [Read full review](https://www.g2.com/survey_responses/civic-review-11490816) **["Civic is the modern auth stack I needed"](https://www.g2.com/survey_responses/civic-review-11506752)** **Rating:** 5.0/5.0 stars _— Madalina B._ [Read full review](https://www.g2.com/survey_responses/civic-review-11506752) ### [GhostScore](https://www.g2.com/products/ghostscore/reviews) Ghostlabs is an elite Web3 marketing advisory and strategic growth agency specializing in token launch mechanics, market perception engineering, and ecosystem scaling. Operating at the intersection of quantitative data and advanced behavioral science ("psycho-logic"), Ghostlabs helps emerging blockchain protocols, centralized exchanges, and decentralized finance (DeFi) platforms navigate the structural asymmetries of the digital asset markets. Unlike traditional marketing agencies that rely on generalized retail campaigns, Ghostlabs builds bespoke go-to-market architectures. The firm's core competencies include end-to-end tokenomics optimization, exchange listing positioning, high-impact institutional narrative creation, and market sentiment engineering. By treating perception as a dynamic system that can be measured and optimized, Ghostlabs designs precise communication strategies that drive deep community alignment and sustainable volume metrics. Headquartered in Asia, Ghostlabs serves a global roster of Web3 startups, infrastructure protocols, and institutional digital asset teams looking to launch, list, and scale in highly competitive, fast-moving market conditions. **Average Rating:** 5.0/5.0 **Total Reviews:** 1 #### Who Is the Company Behind GhostScore? - **Seller:** [GhostLabs](https://www.g2.com/sellers/ghostlabs) - **Year Founded:** 2024 - **HQ Location:** Singapore , SG - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=ac3b4a20bc4976ccfa91459a90c22035951442825ab4f0492fd5981050ba1f90&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fghostlabs-asia&secure%5Burl_type%5D=linkedin_company_website) 3 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Small #### What Are Recent G2 Reviews of GhostScore? **["Easy, Fast, and Free. A Great Experience Indeed..."](https://www.g2.com/survey_responses/ghostscore-review-12995535)** **Rating:** 5.0/5.0 stars _— Terrence D._ [Read full review](https://www.g2.com/survey_responses/ghostscore-review-12995535) ### [Nominis Vue](https://www.g2.com/products/nominis-vue/reviews) NOMINIS: Crypto Compliance, KYT, and Forensic Intelligence in One Platform NOMINIS is an AI-powered crypto compliance and blockchain intelligence platform built for Virtual Asset Service Providers (VASPs), exchanges, crypto fintechs, and law enforcement agencies that need enterprise-grade transaction monitoring without enterprise-level complexity or cost. The platform consolidates wallet screening, Know Your Transaction (KYT), forensic investigation, and crypto intelligence into a single workspace, giving compliance teams everything required to detect illicit activity, prevent sanctions exposure, and meet AML/CTF obligations across 70+ blockchains. What sets NOMINIS apart is its multi-source intelligence approach. Most legacy tools rely primarily on source-of-funds analysis. NOMINIS combines on-chain transaction data with off-chain signals from dark web, deep web, OSINT, SOCMINT, and HUMINT sources, then layers behavioral analytics on top. The result is deeper contextual risk scoring and the ability to attribute wallets even when verified sources are limited. The company maintains one of the largest crypto terror-financing databases in the industry and has been credited with helping flag over $10 billion in illicit crypto activity. Core capabilities include: Wallet Screening: Pre-transaction risk assessment for inbound deposits, onboarding addresses, and counterparties, with exposure checks against mixers, sanctioned entities, and fraud clusters. Know Your Transaction (KYT): Continuous monitoring across 70+ blockchains with real-time alerts on suspicious flows, rapid chain hops, mixer interactions, and laundering typologies. Forensic Tools: Wallet graph exploration, money flow tracing, case files, and evidence exports for investigators and law enforcement. AsKYT, Intelligence as a Service, and Research: Custom investigations and crypto intelligence delivered by NOMINIS analysts. The platform is built for global regulatory readiness, with coverage aligned to FATF, MiCA, FinCEN, FINTRAC, VARA, ADGM, and AMLD5 frameworks. Compliance officers can adjust risk scoring rules without engineering involvement, manage cases end-to-end, and export defensible reports for regulators, auditors, or LEAs. API and UI access are included on every plan, and the system supports automated or manual responses (block, flag, escalate) with full audit trails. Pricing is transparent and volume-based, starting at $350/month for Starter (350 checks) and scaling through Growth and Growth+ tiers up to fully custom enterprise deployments. Annual billing offers meaningful discounts, there are no implementation fees, overage is billed at a published per-call rate, and a 7-day free trial is available with no credit card required. NOMINIS positions itself as a focused alternative to legacy KYT tools for VASPs that need accurate, defensible risk screening and investigations without the cost or complexity of forensic-grade tooling they don't actually need. **Average Rating:** 2.5/5.0 **Total Reviews:** 1 #### Who Is the Company Behind Nominis Vue? - **Seller:** [Nominis](https://www.g2.com/sellers/nominis) - **Year Founded:** 2023 - **HQ Location:** Tel Aviv, IL - **Twitter:** @nominisio 2,181 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=92b175ebe98766e0bf2762114ea7ccc5be675ec912ac441b4f728810e59227ff&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fnominisio&secure%5Burl_type%5D=linkedin_company_website) 15 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Large #### What Do G2 Reviewers Say About Nominis Vue? _AI-generated summary from verified user reviews_ ##### Pros - Users find Nominis Vue's **ease of use** enhances their ability to monitor and detect risky transactions effortlessly. - Users value the **easy integrations** of Nominis Vue, enhancing their ability to monitor blockchain activities seamlessly. - Users appreciate the **real-time monitoring** of Nominis Vue, facilitating quick detection of risky transactions and unusual wallet behavior. ##### Cons - Users find the **slow customer support** response to be frustrating and unhelpful when facing issues. ### [Polymesh Blockchain](https://www.g2.com/products/polymesh-blockchain/reviews) The Polymesh Blockchain Initiative, A blockchain built specifically for security tokens **Average Rating:** 4.0/5.0 **Total Reviews:** 1 #### Who Is the Company Behind Polymesh Blockchain? - **Seller:** [Polymath](https://www.g2.com/sellers/polymath-19a011c8-d2ba-4ee1-8456-5d689bf80e7a) - **Year Founded:** 2017 - **HQ Location:** Toronto, CA - **Twitter:** @PolymathNetwork 60,163 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=12759e674895f94bb3951d76a1c67dd1e0b80f5d2cc357845a0157bf013aabe0&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fpolymathnetwork%2F&secure%5Burl_type%5D=linkedin_company_website) 51 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Medium #### What Are Recent G2 Reviews of Polymesh Blockchain? **["Polymesh Blockchain Review"](https://www.g2.com/survey_responses/polymesh-blockchain-review-9763310)** **Rating:** 4.0/5.0 stars _— SUKDEV D._ [Read full review](https://www.g2.com/survey_responses/polymesh-blockchain-review-9763310) - ‹ Prev‹ Prev - 1 - [2](/categories/blockchain-security?order=popular&page=2#product-list) - [3](/categories/blockchain-security?order=popular&page=3#product-list) - [Next ›Next ›](/categories/blockchain-security?order=popular&page=2#product-list) Spotlight Categories [Sales Tax and VAT Compliance Software](https://www.g2.com/categories/sales-tax-and-vat-compliance) [Contract Management Software](https://www.g2.com/categories/contract-management) [Help Desk Software](https://www.g2.com/categories/help-desk) [Data Observability Software](https://www.g2.com/categories/data-observability) [CRM Software](https://www.g2.com/categories/crm) Similar Categories - [Asset Tokenization Platforms](/categories/asset-tokenization-platforms) - [Blockchain Analysis Tools](/categories/blockchain-analysis-tools) - [Blockchain as a Service](/categories/blockchain-as-a-service) - [Blockchain Payments](/categories/blockchain-payments) - [Blockchain Platforms](/categories/blockchain-platforms) - [Cryptocurrency](/categories/cryptocurrency) - [NFT Platforms](/categories/nft-platforms) - [Smart Contracts](/categories/smart-contracts) ![Brandon Summers-Miller](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Brandon Summers-Miller") BS Researched and written by [Brandon Summers-Miller](https://research.g2.com/insights/author/brandon-summers-miller) Updated October 3, 2024 Blockchain security solutions are designed to protect information stored on a specific blockchain and can be applied to a wide range of data storage systems. These tools operate by analyzing a blockchain ecosystem, evaluating risks, and detecting threats to information, applications, and digital assets. These security solutions are typically used to detect fraudulent transactions and identify threats to a blockchain, as well as protecting smart contracts and tokenized assets. Companies also use these tools to ensure data is protected from various risks and stored in compliance with data protection and/or privacy guidelines. Blockchain security tools differ from blockchain analysis solutions in that they facilitate the actual protection of data; blockchain analysis software supports more in-depth investigation to individual ledgers, identities, and transactions. Blockchain security software may have similar features to other security solutions that may not be designed specifically for securing a blockchain. To qualify for inclusion in the Blockchain Security category, a product must: - Be built upon on a blockchain-based platform or distributed ledger technology (DLT) system - Enforce identity and authentication verification prior to writing to a permissioned blockchain (versus a public, permissionless blockchain), to ensure the integrity of the blockchain - Monitor and detect threats to a blockchain ecosystem - Protect smart contracts and tokenized assets Show More