# Best Security Information and Event Management (SIEM) Software for Medium-Sized Businesses ## How Many Security Information and Event Management (SIEM) Software Products Does G2 Track? **Total Products under this Category:** 122 ### Category Stats (Jul 2026) - **Average Rating:** 4.44/5 The average rating of products in this category, based on all submitted ratings - **Top Trending Product:** ManageEngine ADAudit Plus (+0.41%) - Among all products in this category, ManageEngine ADAudit Plus recorded the largest rating increase compared to last month _Last updated: July 26, 2026_ ## How Does G2 Rank Security Information and Event Management (SIEM) Software Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 5,800+ Authentic Reviews - 122+ 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. ## G2 Grid® for Security Information and Event Management (SIEM) Software ![G2 Grid® for Security Information and Event Management (SIEM) Software plotting products by satisfaction and market presence](https://www.g2.com/categories/security-information-and-event-management-siem/grids.png?focus%5B%5D=68606&focus%5B%5D=5691&focus%5B%5D=1430041&focus%5B%5D=58203&focus%5B%5D=122123&focus%5B%5D=112657&focus%5B%5D=70840&focus%5B%5D=30500) Highlighted products: CrowdStrike Falcon Endpoint Protection Platform, ManageEngine ADAudit Plus, Palo Alto Cortex XSIAM, Check Point Infinity Platform, Microsoft Sentinel, Panther, Cynet, and Google Security Operations. Underlying data: [Grid® JSON](https://www.g2.com/categories/security-information-and-event-management-siem/grids.json?focus%5B%5D=crowdstrike-falcon-endpoint-protection-platform&focus%5B%5D=manageengine-adaudit-plus&focus%5B%5D=palo-alto-cortex-xsiam&focus%5B%5D=check-point-infinity-platform&focus%5B%5D=microsoft-sentinel&focus%5B%5D=panther&focus%5B%5D=cynet&focus%5B%5D=google-security-operations&segment=mid-market) **Sponsored** ### Graylog Graylog is a log management and security information and event management (SIEM) solution designed to assist security and IT teams in detecting, investigating, and responding to potential threats with increased efficiency. By leveraging advanced technologies such as scalable log management, real-time data correlation, and explainable artificial intelligence (AI), Graylog transforms complex data sets into actionable insights, enabling organizations to make informed decisions swiftly. The platform caters to a diverse range of users, from small businesses to large enterprises, all of whom require enhanced visibility and control over their IT environments. Graylog is particularly beneficial for security analysts and IT professionals who need to sift through vast amounts of log data to identify anomalies, track incidents, and ensure compliance with various regulatory standards. Its user-friendly interface and powerful analytical tools streamline the process of threat detection and response, making it an essential asset for organizations aiming to bolster their cybersecurity posture. Key features of Graylog include automated workflows that simplify repetitive tasks, anomaly detection capabilities that flag unusual patterns in data, and guided investigations that assist users in navigating complex security incidents. The platform also offers AI-driven summaries that distill critical information, allowing analysts to focus on high-priority issues without getting bogged down by excessive data. These features collectively enhance the speed and accuracy of threat responses, ensuring that security teams remain in control of their environments. Graylog's versatility is evident in its range of products, which includes Graylog Security, Enterprise, API Security, and Open solutions. Each product is tailored to meet the specific needs of different organizations, providing clarity and context across various operational landscapes. With a user base of over 60,000 organizations globally, Graylog has established itself as a trusted partner in the realm of cybersecurity and log management, helping teams navigate the complexities of modern threats while maintaining a clear focus on their objectives. [Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=paid_promo&secure%5Bad_slot%5D=category_product_list&secure%5Bcategory_id%5D=1081&secure%5Bchosen_at%5D=2026-07-28T10%3A44%3A44Z&secure%5Bmedium%5D=sponsored&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=42017&secure%5Bresource_id%5D=1081&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fsecurity-information-and-event-management-siem%2Fmid-market&secure%5Btoken%5D=9deea0458c9a581febaa15eb91576a885d1ea12e91dcfc007b10e785c76c8501&secure%5Burl%5D=https%3A%2F%2Fwww.graylog.org%2Foverview&secure%5Burl_type%5D=paid_promos) [ CrowdStrike Falcon Endpoint... ](https://www.g2.com/products/crowdstrike-falcon-endpoint-protection-platform/reviews) By [CrowdStrike](https://www.g2.com/sellers/crowdstrike) [ 4.6/5(439) ](https://www.g2.com/products/crowdstrike-falcon-endpoint-protection-platform/reviews) What do users say? Users most consistently praise the lightweight agent that runs quietly without slowing down systems, paired with strong real-time threat detection that catches behavioral and zero-day attacks traditio Pros and Cons [ Features (113) ](https://www.g2.com/products/crowdstrike-falcon-endpoint-protection-platform/reviews?qs=pros-and-cons)[ Expensive (54) ](https://www.g2.com/products/crowdstrike-falcon-endpoint-protection-platform/reviews?qs=pros-and-cons) [ ManageEngine ADAudit Plus ](https://www.g2.com/products/manageengine-adaudit-plus/reviews) By [Zoho](https://www.g2.com/sellers/zoho-b00ca9d5-bca8-41b5-a8ad-275480841704) [ 4.6/5(59) ](https://www.g2.com/products/manageengine-adaudit-plus/reviews) What do users say? Users consistently praise the ease of use and comprehensive reporting capabilities of ManageEngine ADAudit Plus, which streamline Active Directory auditing and monitoring. The intuitive interface and Pros and Cons [ Reporting (3) ](https://www.g2.com/products/manageengine-adaudit-plus/reviews?qs=pros-and-cons)[ Alert Management (1) ](https://www.g2.com/products/manageengine-adaudit-plus/reviews?qs=pros-and-cons) [ Palo Alto Cortex XSIAM ](https://www.g2.com/products/palo-alto-cortex-xsiam/reviews) By [Palo Alto Networks](https://www.g2.com/sellers/palo-alto-networks) [ 4.4/5(91) ](https://www.g2.com/products/palo-alto-cortex-xsiam/reviews) What do users say? Users consistently praise the user-friendly interface and ease of integration with various log sources, making it accessible for both new and experienced analysts. The tool's robust capabilities for t Pros and Cons [ Log Management (13) ](https://www.g2.com/products/palo-alto-cortex-xsiam/reviews?qs=pros-and-cons)[ Resource Intensive (9) ](https://www.g2.com/products/palo-alto-cortex-xsiam/reviews?qs=pros-and-cons) [ Check Point Infinity Platform ](https://www.g2.com/products/check-point-infinity-platform/reviews) By [Check Point Software Technologies](https://www.g2.com/sellers/check-point-software-technologies) [ 4.6/5(117) ](https://www.g2.com/products/check-point-infinity-platform/reviews) What do users say? Users consistently praise the ease of deployment and unified management capabilities of the Check Point Infinity Platform, highlighting how it simplifies security across multiple environments. The pla Pros and Cons [ Cloud Security (20) ](https://www.g2.com/products/check-point-infinity-platform/reviews?qs=pros-and-cons)[ Learning Curve (10) ](https://www.g2.com/products/check-point-infinity-platform/reviews?qs=pros-and-cons) [ Microsoft Sentinel ](https://www.g2.com/products/microsoft-sentinel/reviews) By [Microsoft](https://www.g2.com/sellers/microsoft) [ 4.4/5(296) ](https://www.g2.com/products/microsoft-sentinel/reviews) What do users say? Users consistently praise Microsoft Sentinel for its seamless integration with other Microsoft services, which enhances security monitoring and incident response. The platform's cloud-native architect Pros and Cons [ Real-time Monitoring (27) ](https://www.g2.com/products/microsoft-sentinel/reviews?qs=pros-and-cons)[ Cloud Dependency (12) ](https://www.g2.com/products/microsoft-sentinel/reviews?qs=pros-and-cons) [ Cynet ](https://www.g2.com/products/cynet/reviews) By [Cynet](https://www.g2.com/sellers/cynet) [ 4.7/5(260) ](https://www.g2.com/products/cynet/reviews) What do users say? Users consistently praise the user-friendly interface and comprehensive support provided by Cynet, highlighting its ability to centralize multiple security functions into one platform. The intuitive d Pros and Cons [ Ease of Use (48) ](https://www.g2.com/products/cynet/reviews?qs=pros-and-cons)[ Limited Customization (11) ](https://www.g2.com/products/cynet/reviews?qs=pros-and-cons) [ Panther ](https://www.g2.com/products/panther/reviews) By [Panther Labs](https://www.g2.com/sellers/panther-labs) [ 4.7/5(49) ](https://www.g2.com/products/panther/reviews) What do users say? Users consistently praise Panther for its ease of use and flexibility in detection, allowing teams to implement detection as code with Python. The platform's intuitive interface and responsive support Pros and Cons [ Customer Support (13) ](https://www.g2.com/products/panther/reviews?qs=pros-and-cons)[ Missing Features (5) ](https://www.g2.com/products/panther/reviews?qs=pros-and-cons) [ Google Security Operations ](https://www.g2.com/products/google-security-operations/reviews) By [Google](https://www.g2.com/sellers/google) [ 4.4/5(61) ](https://www.g2.com/products/google-security-operations/reviews) What do users say? Users consistently praise the product for its ease of use and scalability, allowing teams to efficiently manage and respond to security threats. The integration with other Google services enhances its Pros and Cons [ Security (8) ](https://www.g2.com/products/google-security-operations/reviews?qs=pros-and-cons)[ Expensive (6) ](https://www.g2.com/products/google-security-operations/reviews?qs=pros-and-cons) [ IBM QRadar SIEM ](https://www.g2.com/products/ibm-ibm-qradar-siem/reviews) By [IBM](https://www.g2.com/sellers/ibm) [ 4.4/5(337) ](https://www.g2.com/products/ibm-ibm-qradar-siem/reviews) What do users say? Users consistently praise the user-friendly interface and ease of integration with various log sources, making it accessible for both new and experienced analysts. The platform's robust capabilities i Pros and Cons [ Ease of Use (23) ](https://www.g2.com/products/ibm-ibm-qradar-siem/reviews?qs=pros-and-cons)[ UX Improvement (11) ](https://www.g2.com/products/ibm-ibm-qradar-siem/reviews?qs=pros-and-cons) [ Sumo Logic ](https://www.g2.com/products/sumo-logic/reviews) By [Sumo Logic](https://www.g2.com/sellers/sumo-logic) [ 4.3/5(404) ](https://www.g2.com/products/sumo-logic/reviews) What do users say? Users consistently praise the ease of use and real-time insights provided by Sumo Logic, which significantly enhances their ability to monitor and analyze logs efficiently. The platform's robust query Pros and Cons [ Ease of Use (54) ](https://www.g2.com/products/sumo-logic/reviews?qs=pros-and-cons)[ Expensive (18) ](https://www.g2.com/products/sumo-logic/reviews?qs=pros-and-cons) [ InsightIDR ](https://www.g2.com/products/rapid7-next-gen-siem/reviews) By [Rapid7](https://www.g2.com/sellers/rapid7) [ 4.4/5(75) ](https://www.g2.com/products/rapid7-next-gen-siem/reviews) What do users say? Users consistently praise the product for its ease of use and robust threat detection, highlighting its ability to provide comprehensive visibility into security incidents. Many appreciate the straigh Pros and Cons [ Ease of Use (2) ](https://www.g2.com/products/rapid7-next-gen-siem/reviews?qs=pros-and-cons)[ Limited Features (2) ](https://www.g2.com/products/rapid7-next-gen-siem/reviews?qs=pros-and-cons) [ Elastic Security ](https://www.g2.com/products/elastic-elastic-security/reviews) By [Elastic](https://www.g2.com/sellers/elastic) [ 4.5/5(23) ](https://www.g2.com/products/elastic-elastic-security/reviews) What do users say? Users consistently praise the software for its reliable performance and ease of setup, making it effective for protecting sensitive data and aggregating logs. The extensive community support and numer Pros and Cons [ Integrations (7) ](https://www.g2.com/products/elastic-elastic-security/reviews?qs=pros-and-cons)[ Limitations (4) ](https://www.g2.com/products/elastic-elastic-security/reviews?qs=pros-and-cons) [ Blumira Automated Detection... ](https://www.g2.com/products/blumira-automated-detection-response/reviews) By [Blumira](https://www.g2.com/sellers/blumira) [ 4.6/5(124) ](https://www.g2.com/products/blumira-automated-detection-response/reviews) What do users say? Users consistently praise the product for its ease of use and quick setup, allowing organizations to integrate and monitor their security environments with minimal effort. The automated alerts and act Pros and Cons [ Ease of Use (34) ](https://www.g2.com/products/blumira-automated-detection-response/reviews?qs=pros-and-cons)[ Limited Customization (11) ](https://www.g2.com/products/blumira-automated-detection-response/reviews?qs=pros-and-cons) [ Splunk Enterprise ](https://www.g2.com/products/splunk-enterprise/reviews) By [Cisco](https://www.g2.com/sellers/cisco) [ 4.3/5(434) ](https://www.g2.com/products/splunk-enterprise/reviews) What do users say? Users consistently praise the product for its ease of use and powerful data analysis capabilities, making it a valuable tool for monitoring and managing large volumes of logs. The ability to create cu Pros and Cons [ Innovation (13) ](https://www.g2.com/products/splunk-enterprise/reviews?qs=pros-and-cons)[ Expensive (8) ](https://www.g2.com/products/splunk-enterprise/reviews?qs=pros-and-cons) [ Datadog ](https://www.g2.com/products/datadog/reviews) By [Datadog](https://www.g2.com/sellers/datadog) [ 4.4/5(726) ](https://www.g2.com/products/datadog/reviews) What do users say? Users consistently praise real-time monitoring and the intuitive dashboards that simplify tracking application performance and infrastructure health. The platform's ability to consolidate logs, metric Pros and Cons [ Ease of Use (145) ](https://www.g2.com/products/datadog/reviews?qs=pros-and-cons)[ Expensive (92) ](https://www.g2.com/products/datadog/reviews?qs=pros-and-cons) - ‹ Prev‹ Prev - 1 - [2](/categories/security-information-and-event-management-siem/mid-market?order=g2_score&page=2#product-list) - [Next ›Next ›](/categories/security-information-and-event-management-siem/mid-market?order=g2_score&page=2#product-list) Spotlight Categories [SaaS Backup Software](https://www.g2.com/categories/saas-backup) [Applicant Tracking Systems (ATS)](https://www.g2.com/categories/applicant-tracking-systems-ats) [Contract Lifecycle Management (CLM) Software](https://www.g2.com/categories/contract-lifecycle-management-clm) [Project Management Software](https://www.g2.com/categories/project-management) [Webinar Platforms](https://www.g2.com/categories/webinar) Similar Categories - [Incident Response](/categories/incident-response) - [Threat Intelligence](/categories/threat-intelligence) - [AI SOC Agents](/categories/ai-soc-agents) - [Breach and Attack Simulation (BAS)](/categories/breach-and-attack-simulation-bas) - [Deception Technology](/categories/deception-technology) - [Digital Forensics](/categories/digital-forensics) - [Digital Risk Protection (DRP) Platforms](/categories/digital-risk-protection-drp-platforms) - [IoT Security Solutions](/categories/iot-security-solutions) - [Malware Analysis Tools](/categories/malware-analysis-tools) - [Managed Detection and Response (MDR)](/categories/managed-detection-and-response-mdr) - [OT Secure Remote Access](/categories/ot-secure-remote-access) - [OT Security Tools](/categories/ot-security-tools) - [Red Teaming Tools](/categories/red-teaming-tools) - [Security Orchestration, Automation, and Response (SOAR)](/categories/security-orchestration-automation-and-response-soar) [Browse Security Information and Event Management (SIEM) Themes](/categories/security-information-and-event-management-siem/themes) ![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 Products classified in the overall Security Information and Event Management (SIEM) category are similar in many regards and help companies of all sizes solve their business problems. However, medium-sized business features, pricing, setup, and installation differ from businesses of other sizes, which is why we match buyers to the right Medium-Sized Business Security Information and Event Management (SIEM) to fit their needs. Compare product ratings based on reviews from enterprise users or connect with one of G2's buying advisors to find the right solutions within the Medium-Sized Business Security Information and Event Management (SIEM) category. In addition to qualifying for inclusion in the Security Information and Event Management (SIEM) Software category, to qualify for inclusion in the Medium-Sized Business Security Information and Event Management (SIEM) Software category, a product must have at least 10 reviews left by a reviewer from a medium-sized business. Top Tools at a Glance | | Behavioral threat detection with real-time endpoint response | User Review "Crowdstrike Falcon: Proactive Security, Steep Learning Curve" | | | Cloud-native SIEM with unified observability | User Review "Centralized Logging with Intuitive Dashboards" | | | Unified SIEM with embedded MXDR for MSPs | User Review "Valuable Visibility with Room for Improvement" | | | Cloud-native SIEM with Microsoft ecosystem integration | User Review "Easy Log Ingestion Across Formats with Seamless Sentinel Integrations" | | | Unified threat prevention across hybrid security infrastructure | User Review "Excellent option Harmony Platform for security central" | | | Real-time log correlation with SPL query power | User Review "Excellent Enterprise Observability and Log Management Solution for Hybrid Cloud Infrastructure" | | | Detection-as-code SIEM with Python-based alerting | User Review "Panther’s SIEM + AI Makes Triage and Threat Hunting Fast and Seamless" | * * * Show More * * * ## How Do You Choose the Right Security Information and Event Management (SIEM) Software? ### What You Should Know About SIEM Software ### What is security information and event management (SIEM) software? Security Information and Event Management (SIEM) is a centralized system for threat detection that aggregates security alerts from multiple sources, simplifying threat response and compliance reporting. SIEM software is one of the most commonly used tools for security administrators and security incident response professionals. They provide a single platform capable of facilitating event and threat protection, log analysis and investigation, and threat remediation. Some cutting-edge tools provide additional functionality for creating response workflows, data normalization, and advanced threat protection. SIEM platforms help security programs operate by collecting security data for future analysis, storing these data points, correlating them to security events, and facilitating analysis of those events. Security teams can define rules for typical and suspicious activities with SIEM tools. Advanced Next-Gen SIEM solutions leverage [machine learning](https://www.g2.com/articles/what-is-machine-learning) and [AI](https://www.g2.com/articles/what-is-artificial-intelligence) to refine behavior models continuously, enhancing [User and Entity Behavior Analytics (UEBA)](https://www.g2.com/categories/user-and-entity-behavior-analytics-ueba) and reducing false positives. These systems analyze data against set rules and behavioral patterns, flagging notable events when anomalies are detected. Companies using SIEM solutions deploy sensors across digital assets to automate data collection. Sensors relay information back to the SIEM’s log and event database. When additional security incidents arise, the SIEM platform detects anomalies. It correlates similar logs to provide context and threat information for security teams as they attempt to remediate any existing threats or vulnerabilities. #### **What does SIEM stand for?** SIEM stands for security information and event management (SIEM), which is a combination of two different acronyms for security technology: security information monitoring (SIM) and security event management (SEM). SIM is the practice of collecting, aggregating, and analyzing security data, typically in the form of logs. SIM tools automate this process and document security information for other sources, such as [intrusion detection systems](https://www.g2.com/categories/intrusion-detection-and-prevention-systems-idps), [firewalls](https://www.g2.com/categories/firewall-software), or [routers](https://www.g2.com/categories/routers). Event logs and their associated informational components are recorded and stored for long periods for either retrospective analysis or compliance requirements. SEM is a family of security software for discovering, analyzing, visualizing, and responding to threats as they arise. SEM is a core component of a security operations system. While SIM tools are designed for log collection and storage, SEM tools typically rely on SQL databases to store specific logs and other event data as they are generated in real time by security devices and IT systems. They usually also provide the functionality to correlate and analyze event data, monitor systems in real time, and alert security teams of abnormal activity. SIEM combines the functionality of SIM and SEM to centralize control over log storage, event management, and real-time analysis. SIM and SEM have become defunct technologies, as SIEM’s rise has provided dual-purpose functionality. SIEM vendors offer a single tool capable of performing data aggregation, information correlation, and event management. ### Types of SIEM solutions #### **Traditional SIEM** Traditional SIEM tools are deployed on-premises with sensors placed on IT assets to analyze events and collect system logs. The data is used to develop baseline references and identify indicators of compromise. The SIEM product alerts security teams for intervention when a system becomes compromised.  #### **Cloud or virtual SIEM** Cloud-based and virtualized SIEM software are tools typically used to secure cloud infrastructure and services a cloud provider delivers. These tools are often less expensive than on-premises solutions and more accessible to implement, as no physical labor is required. They are ideal for companies without local IT infrastructure. #### [**Managed SIEM services**](https://www.g2.com/categories/managed-siem-services) Companies that do not have a full-fledged security program may choose managed SIEM services to aid in management and reduce work for internal employees. These SIEM services are delivered by managed service providers who provide the customer data and dashboards with security information and activity, but the provider handles implementation and remediation.  ### What are the common features of SIEM systems? The following are some core features within SIEM software that can help users collect security data, analyze logs, and detect threats: **Activity monitoring:** SIEM systems document the actions from endpoints within a network. The system alerts users of incidents and abnormal activities and documents the access point. Real-time tracking will document these for analysis as an event takes place. **Asset management:** These SIEM features keep records of each network asset and its activity. The feature may also refer to the discovery of new assets accessing the network. **Log management:** This functionality documents and stores event logs in a secure repository for reference, analysis, or compliance reasons. **Event management:** As events occur in real time, the SIEM software alerts users of incidents. This allows security teams to intervene manually or trigger an automated response to resolve the issue. [**Automated response**](https://www.g2.com/categories/security-information-and-event-management-siem/f/automated-response) **:** Response automation reduces the time spent diagnosing and resolving issues manually. The features are typically capable of quickly resolving common network security incidents. **Incident reporting:** Incident reports document cases of abnormal activity and compromised systems. These can be used for forensic analysis or as a reference point for future incidents. **Threat intelligence:** Threat intelligence feeds integrate information to train SIEM systems to detect emerging and existing threats. These threat feeds store information related to potential threats and vulnerabilities to ensure issues are discovered and teams are provided with the information necessary to resolve the problems as they occur. [**Vulnerability assessment**](https://www.g2.com/categories/security-information-and-event-management-siem/f/vulnerability-assessment) **:** Vulnerability assessment tools may scan networks for potential vulnerabilities or audit data to discover non-compliant practices. Mainly, they’re used to analyze an existing network and IT infrastructure to outline access points that can be easily compromised. [**Advanced analytics**](https://www.g2.com/categories/security-information-and-event-management-siem/f/advanced-analytics) **:** Advanced analytics features allow users to customize analysis with granular or individually specific metrics pertinent to the business’ resources. [**Data examination**](https://www.g2.com/categories/security-information-and-event-management-siem/f/data-examination) **:** Data examination features typically facilitate the forensic analysis of incident data and event logs. These features allow users to search databases and incident logs to gain insights into vulnerabilities and incidents. ### What are the benefits of using SIEM products? Below are a few of the main reasons SIEM software is commonly used to protect businesses of all sizes: **Data aggregation and correlation:** SIEM systems and companies collect vast amounts of information from an entire network environment. This information is gathered from virtually anything interacting with a network, from endpoints and servers to firewalls and antivirus tools. It is either given directly to the SIEM or using agents (decision-making programs designed to identify irregular information). The platform is set up to deploy agents and collect and store similar information together according to security policies set in place by administrators. **Incident alerting:** As information comes in from a network’s various connected components, the SIEM system correlates it using rule-based policies. These policies inform agents of normal behavior and threats. If any action violates these policies or malware or intrusion is discovered. At the same time, the SIEM platform monitors network activity; it is labeled as suspicious, security controls restrict access, and administrators are alerted. **Security analysis:** Retrospective analysis may be performed by searching log data during specific periods or based on specific criteria. Security teams may suspect a certain misconfiguration or kind of malware caused an event. They may also suspect an unapproved party went undetected at a specific time. Teams will analyze the logs and look for specific characteristics in the data to determine whether their suspicion was right. They may also discover vulnerabilities or misconfigurations that leave them susceptible to attack and remediate them. ### Software related to SIEM tools Many network and system security solutions involve collecting and analyzing event logs and security information. SIEM systems are typically the most all-encompassing solutions available, but many other security solutions may integrate with them for added functionality or complementary use. These are a few different technology categories related to SIEM software. [Threat intelligence software](https://www.g2.com/categories/threat-intelligence) **:** Threat intelligence software is an informational service that provides SIEM tools and other information security systems with up-to-date information on web-based threats. They can inform the system of zero-day threats, new forms of malware, potential exploits, and different kinds of vulnerabilities. [Incident response software](https://www.g2.com/categories/incident-response) **:** SIEM systems may facilitate incident response, but these tools are specifically designed to streamline the remediation process or add investigative capabilities during security workflow processes. Incident response solutions will not provide the same compliance maintenance or log storage capabilities. Still, they can be used to increase a team’s ability to tackle threats as they emerge. [Network security policy management (NSPM) software](https://www.g2.com/categories/network-security-policy-management-nspm) **:** NSPM software has some overlapping functionality to ensure security hardware and IT systems are correctly configured but cannot detect and resolve threats. They are typically used to ensure devices like firewalls or DNS filters are functioning correctly and in alignment with the security rules put in place by security teams. [Intrusion detection and prevention systems (IDPS)](https://www.g2.com/categories/intrusion-detection-and-prevention-systems-idps) **:** While SIEM systems specialize in log management, alerting, and correlation, IDPS provide additional detection and protection features to prevent unapproved parties from accessing sensitive systems and network breaches. However, they will not facilitate the analysis and forensic investigation of logs with the same level of detail as an SIEM system. [Managed security services providers](https://www.g2.com/categories/managed-security-services) **:** Various managed security services are available for businesses without the resources or staff necessary to operate a full-fledged security administration and operations team. Managed services are a viable option and will provide companies with skilled staff to protect their customers’ systems and keep their sensitive information protected. ### Challenges with SIEM software **Staffing:** There is an existing shortage of skilled security professionals. Managing SIEM products and maintaining a well-rounded security posture requires dedicated personnel with highly specialized skills. Some smaller or growing companies may not have the means to recruit, hire, and retain qualified security pros. In such cases, businesses can consider managed services to outsource the labor.  **Compliance:** Some industries have specific compliance requirements determined by various governing bodies, but SIEM software can be used across several industries to maintain compliance standards. Many industry-specific compliance requirements exist, but most require security teams to protect sensitive data, restrict access to unapproved parties, and monitor changes made to identities, information, or privileges. For example, SIEM systems can maintain GDPR compliance by verifying security controls and data access, facilitating long-term storage of log data, and notifying security staff of security incidents, as GDPR requires. ### Which companies should buy SIEM solutions? **Vertical industries:** Vertical industries, such as healthcare and financial services, often have additional compliance requirements related to data protection and privacy. SIEM is an ideal solution for outlining requirements, mapping threats, and remediating vulnerabilities.  **SaaS business:** SaaS businesses utilizing resources from a cloud service provider are still responsible for a significant portion of the security efforts required to protect a cloud-native business. These companies may jump for cloud-native SIEM tools but will benefit from any SIEM to prevent, detect, and respond to threats.  ### How to choose the best SIEM software #### Requirements Gathering (RFI/RFP) for Security Information and Event Management (SIEM) Software The first step to purchasing a SIEM solution is to outline the options. Companies should be sure whether they need a cloud-based or on-premises solution. They should also outline the number of interconnected devices they need and whether they want physical or virtual sensors to secure them. Additional and possibly obvious requirements should include budgetary considerations, staffing limitations, and required integrations_. _ #### **Compare Security Information and Event Management (SIEM) Software Products** ##### **Create a long list** Once the requirements are outlined, buyers should prioritize the tools and identify the ones with as many features as possible that fit the budget window. It is recommended to restrict the list to products with desired features, pricing, and deployment methods to identify a dozen or so options. For example, if the business needs a cloud-native SIEM for less than $10k a year, half of the SIEM options will be eliminated.  When choosing a SIEM provider, focus on the vendor’s experience, reputation, and specific functionality relevant to your security needs. Core capabilities ensure essential threat detection, while next-gen features add advanced intelligence and automation, allowing for a more proactive security posture. Here’s a breakdown to guide your selection: **Core SIEM capabilities** - Threat detection: Look for SIEMs with robust threat detection, which uses rules and behavioral analytics, along with threat feed integration, to accurately identify potential threats. - Threat intelligence and security alerting: Leading SIEMs incorporate threat intelligence feeds, aggregate security data, and alert you when suspicious activities are detected, ensuring real-time updates on evolving threats. - Compliance reporting: Compliance support is crucial, especially for meeting standards like HIPAA, PCI, and FFIEC. SIEMs streamline compliance assessment and reporting, helping prevent costly non-compliance. - Real-time notifications: Swift alerts are vital; SIEMs that notify you of breaches immediately enable faster responses to potential threats. - Data aggregation: A centralized view of all network activities ensures no area is left unmonitored, which is crucial for comprehensive threat visibility as your organization scales. - Data normalization: SIEMs that normalize incoming data make it easier to analyze security events and extract actionable insights from disparate sources. **Next-gen SIEM capabilities** - Data collection and management: Next-gen SIEMs pull data from the cloud, on-premises, and external devices, consolidating insights across the entire IT environment. - Cloud delivery: Cloud-based SIEMs use scalable storage, accommodating large data volumes without the limitations of on-premises hardware. - User and entity behavior analytics (UEBA): By establishing normal user behavior and identifying deviations, UEBA helps detect insider threats and new, unknown threats. - Security orchestration and automation response (SOAR): SOAR automates incident response, integrates with IT infrastructure, and enables coordinated responses across firewalls, email servers, and access controls. - Automated attack timelines: Next-gen SIEMs automatically create visual attack timelines, simplifying investigation and triage, even for less experienced analysts. Selecting an SIEM vendor with both core and next-gen capabilities offers your organization a comprehensive and agile approach to security, meeting both current and future requirements. ##### **Create a short list** Narrowing down a short list can be tricky, especially for the indecisive, but these decisions must be made. Once the long list is limited to affordable products with the desired features, it’s time to search for third-party validation. For each tool, the buyer must analyze end-user reviews, analyst reports, and empirical security evaluations. Combining these specified factors should help rank options and eliminate poorly performing products. _ _ ##### **Conduct demos** With the list narrowed down to three to five possible products, businesses can contact vendors and schedule demos. This will help them get first-hand experience with the product, ask targeted questions, and gauge the vendors' quality of service.  Here are some essential questions to guide your decision: - Will the tool enhance log collection and management?: Effective log collection is foundational. Look for compatible software across systems and devices, offering a user-friendly dashboard for streamlined monitoring. - Does the tool support compliance efforts? Even if compliance isn't a priority, choosing an SIEM that facilitates auditing and reporting can future-proof your operations. Look for tools that simplify compliance processes and reporting. - Can the tool leverage past security events in threat response? One of SIEM’s strengths is using historical data to inform future threat detection. Ensure the tool offers in-depth analytics and drill-down capabilities to analyze and act on past incidents. - Is the incident response fast and automated? Timely, effective responses are critical. The tool should provide customizable alerts that notify your team immediately when needed so you can confidently leave the dashboard.  #### Selection of Security Information and Event Management (SIEM) Software ##### **Choose a selection team** Decision-makers need to involve subject matter experts from all teams that will use the system in choosing a selection team. For backup software, this primarily involves product managers, developers, IT, and security staff. Any manager or department-level leader should also include individuals managing any solution the backup product will be integrating with.  ##### **Negotiation** The seniority of the negotiation team may vary depending on the maturity of the business. It is advisable to include relevant directors or managers from the security and IT departments as well as from any other cross-functional departments that may be impacted. ##### **Final decision** If the company has a chief information security officer (CISO), that individual will likely decide. If not, companies must trust their security professionals’ ability to use and understand the product.  ### How much does SIEM software cost? Potential growth should be considered if the buyer chooses a cloud-based SIEM tool that offers pricing on the SaaS pay-as-you-use model. Some solutions are inexpensive at the start and offer affordable, low-tier pricing. Alternatively, some may rapidly increase pricing and fees as the company and storage need to scale. Some vendors provide permanently free backup products for individuals or small teams. **Cloud SIEM_:_** SIEM as a service pricing may vary, but it traditionally scales as storage increases. Additional costs may come from increased features such as automated remediation, security orchestration, and integrated threat intelligence.  **On-premises SIEM:** On-premises solutions are typically more expensive and require more effort and resources. They will also be more costly to maintain and require dedicated staff. Still, companies with high compliance requirements should adopt on-premises security regardless.  #### Return on Investment (ROI) Cloud-based SIEM solutions will provide a quicker ROI, similar to their lower average cost. The situation is pretty cut and dry since there is much lower initial investment and lower demand for dedicated staffing.  However, for on-premises systems, the ROI will depend on the scale and scope of business IT systems. Hundreds of servers will require hundreds of sensors, potentially more, as time wears on computing equipment. Once implemented, they must be operated and maintained by (expensive) security professionals.