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CyStack

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28 reviews
  • 5 profiles
  • 9 categories
Average star rating
4.5
Serving customers since
2017

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CyStack Security Services

20 reviews

CyStack provides customized and scalable cybersecurity solutions to help you meet your specific security needs, including testing, security consulting and management services. Our solutions focus on protecting data, preventing cyber-attacks, and managing information security risks by adopting cutting-edge technologies in Automated Security, Crowdsourced Security, and AI. With 200+ businesses and 20,000+ users worldwide, we are recognized as a trusted partner to organizations and a leading powerhouse in cybersecurity research and development. By partnering with CyStack, you can focus on growing their business while having peace of mind that their data and assets are well-protected from cyber threats.

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Locker Password Manager

8 reviews

Locker is a password manager that goes beyond the mere concept of password management. Locker stores your sensitive data, logs you in to your favorite sites, scans for data breaches, and more. Every feature in Locker is built on the foundation of privacy and transparency to ensure the highest security for users. We believe everyone deserves a secure and seamless internet experience, and Locker strives to provide just that. No matter if you are tech-savvy or not, you can always keep yourself safe online with Locker. Locker for Business is an advanced business password manager. Mitigate risks. Improve productivity

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CyStack Platform

0 reviews

CyStack Platform is a web security platform delivered as a service. It simplifies security practices by applying the technology built up by white-hat hackers

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CyStack Endpoint

0 reviews

CyStack Endpoint is a comprehensive platform for managing and securing a company's devices. It simplifies IT operations by consolidating multiple functions into a single interface. The platform provides robust security by automatically detecting threats, including malware and vulnerabilities, and managing patch updates. It also ensures data protection through file labeling, tracking data movement, and controlling data input/output. This helps businesses maintain compliance with security standards like ISO 27001 and Decree 13. For IT and device management, CyStack Endpoint allows administrators to remotely control all devices, supporting various operating systems from Windows to iOS. It streamlines tasks like employee onboarding and offboarding, and it can automatically configure VPNs and restrict access to peripherals or specific network addresses. This makes technical support more efficient while ensuring device-level security policies are consistently enforced.

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WhiteHub

0 reviews

For enterprises, WhiteHub offers a technological solution that enables access to over 1500 security researchers to discover critical vulnerabilities in products, including those not discoverable by using traditional solutions and automated tools. For experts, WhiteHub provides a professional and transparent environment designed to help researchers, white-hat hackers and security engineers develop their skills, build reputation and gain income while pursuing their passion for pentesting applications developed by enterprises.

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CyStack Reviews

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Star Rating
23
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1
1
1
Khanh H.
KH
Khanh H.
Software Engineer| Blockchain …
11/03/2025
Validated Reviewer
Review source: Organic Review from Pop Up

Robust Security Audits with Unmatched Professionalism

I have been using CyStack Security Services for over three years and have found their work extremely valuable. I am particularly impressed by their thoroughness in conducting security audits for our blockchain project, which helped identify and fix potential vulnerabilities in our smart contracts and system infrastructure. This, in turn, strengthened our project's security and built greater trust with our users and partners. I greatly value CyStack’s professionalism and attention to detail. Their audit reports are clear and easy to understand, with transparent steps for addressing issues. Additionally, the responsiveness of their team and their technical expertise make the entire engagement process smooth and reliable. CyStack's strong reputation and experience in the blockchain arena initially drew us to them, and their commitment to quality and consistent support has been reassuring. I appreciate their transparency and find their reliable support and commitment to quality as factors that make me confident in our ongoing partnership. My experience with CyStack has been so positive that I would unreservedly recommend them, rating my likelihood of recommending them a 10 out of 10.
Tạ Đức T.
TT
Tạ Đức T.
Co-Founder at NTCS | Security Solution Architecture | Security Consultant | Redteam | Blueteam | Cloud Security | Network infrastructure security | Electricity - railway security
10/27/2025
Validated Reviewer
Review source: Organic

Exceptional security partner with world-class hacking expertise

CyStack's technical team is excellent. They don't just run standard tests - they really think like attackers. They understand how modern applications are built and how to exploit business logic flaws, not just basic vulnerabilities. What impressed me most is their professionalism and consistency - every engagement was well-documented, and their findings were always reproducible and clearly explained.
TN
Thu Phuong N.
10/23/2025
Validated Reviewer
Review source: Seller invite
Incentivized Review

Transparent, Reliable Testing with Excellent Communication

The team demonstrates strong English communication skills, which makes interactions smooth and clear. They provide a platform that allows for sharing real-time test results with clients, ensuring transparency throughout the process. Their testing approach is systematic, and the presence of certified team members adds to the reliability of their services.

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HQ Location:
Hanoi, VN

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What is CyStack?

CyStack (https://cystack.net/) is a cybersecurity firm that specializes in providing comprehensive security solutions to protect businesses from online threats. Their services are designed to secure digital assets, ensure compliance with standards, and enhance overall cyber defenses through cutting-edge technology and expertise. CyStack offers a range of security tools and services, including vulnerability assessments, penetration testing, security monitoring, and incident response. Their solutions cater to various sectors, including eCommerce, finance, and healthcare, helping organizations defend against cyberattacks and data breaches effectively. With an emphasis on innovation and customer-centric approaches, CyStack is committed to helping businesses maintain robust cybersecurity postures in the ever-evolving digital landscape.

Details

Year Founded
2017