22 Best SIEM Tools Reviewed in 2025

ManageEngine Log360 is a security information and event management (SIEM) solution designed to help organizations monitor and manage their IT infrastructure.

Why I picked ManageEngine Log360: I picked ManageEngine Log360 because of its comprehensive approach to security management. It integrates various functionalities like threat intelligence, machine learning-based anomaly detection, and rule-based attack detection to provide a robust security framework. The software's ability to offer real-time insights and analytics across on-premises, cloud, and hybrid environments ensures a thorough and dynamic approach to threat detection and response.

ManageEngine Log360 Standout Features and Integrations:

Features include its User and Entity Behavior Analytics (UEBA). This feature uses advanced machine learning algorithms to establish baselines of normal activity and then detect deviations that may indicate potential threats. Another notable feature is its automated threat response, which can reduce the time between threat detection and mitigation by automating the response process.

Integrations include Microsoft Active Directory, Office 365, Google Workspace, AWS, Azure, Salesforce, Box, ServiceNow, Jira, Slack, IBM QRadar, Splunk, SolarWinds, Palo Alto Networks, Fortinet, Cisco, and Sophos.

Logmanager is a lightweight SIEM equipped with out-of-the-box parsers, dashboards, and alerts for quick deployment. With an easy setup, you can manage the platform on your own without needing a dedicated expert or integration partner, making it ideal for small and mid-sized businesses.

Why I picked Logmanager: It allows you to store, search, and analyze log data at any scale, unifying logs from your entire IT infrastructure. This comprehensive approach provides context for troubleshooting, infrastructure monitoring, and security analysis, ensuring that your team can maintain a secure and compliant environment. With native support for over 140 log sources, adding new sources is quick and straightforward. The platform also offers a no-code graphical programming interface, enabling your team to customize and adapt the system to your specific needs without requiring extensive coding knowledge.

Logmanager Standout Features and Integrations:

Features include predefined dashboards that provide quick insights into data trends, system performance, security events, and compliance status. These dashboards streamline troubleshooting and enhance network observability. Additionally, Logmanager ensures compliance readiness by helping you meet auditing and reporting requirements for regulations such as GDPR, NIS2, and ISO 27001.

Integrations include Apache Tomcat, Aruba Networks, CheckPoint Firewall, Cisco devices, DELL iDRAC, ESET Remote Administrator, Fortinet products, IBM AIX Syslog, Microsoft products, and MySQL.

SolarWinds Security Event Manager is a SIEM platform that aggregates, analyzes, and reports log data in one location. Advanced threat detection capabilities help organizations detect and respond to security incidents in real-time.

Why I picked SolarWinds Security Event Manager: I selected SolarWinds Security Event Manager because it offers an extensive list of pre-built connectors. This gives enterprises a more comprehensive view of their environment. Intuitive visualizations like charts and graphs make it easy to identify and respond to security issues.

SolarWinds Security Event Manager Standout Features and Integrations:

Features that I found particularly impressive about SolarWinds Security Event Manager are its Active Response tool, which lets you automate actions to respond to certain activities. For example, you can create a rule that automatically logs users off if they try to send sensitive data to public clouds. The platform also offers out-of-the-box support for security mandates like GDPR, HIPAA, and PCI DSS.

Integrations include hundreds of pre-built connectors for anti-virus software, firewalls, physical infrastructure devices, network services, and more. Notable connectors include Microsoft Security Security Essentials, Cisco Firesight, Sentinel IPS, and Dell Server Administrator.

Introduction

Securonix is a security information and event management (SIEM) tool that helps you detect and respond to security threats. It uses advanced analytics and machine learning to provide comprehensive security monitoring and threat detection capabilities.

Why I Picked

I picked Securonix because of its ability to leverage machine learning for threat detection. It helps your team identify anomalies and potential threats by analyzing user behavior and network activity. This means you can catch threats that traditional signature-based systems might miss, giving you an edge in cybersecurity. Additionally, Securonix aligns alerts with frameworks like MITRE ATT&CK, which helps you understand and respond to threats more effectively.

Another reason Securonix stands out is its focus on monitoring insider threats. By providing detailed insights into user activities, it helps you detect suspicious behavior before it escalates into a full-blown security incident. This focus on insider threat detection ensures that your organization is protected from both external and internal risks.

Standout Features

Features include its cloud-native architecture, which allows for scalability and flexibility, making it easier for your team to manage security across various environments. The continuous threat content delivery keeps your security team informed of the latest threats, ensuring you're always prepared. Additionally, its real-time data access facilitates faster investigations, allowing you to quickly respond to incidents and minimize potential damage.

Integrations

Integrations include Amazon Web Services (AWS), Google Cloud Platform (GCP), Microsoft Azure, Microsoft 365, ThreatQuotient, Palo Alto XSOAR, ServiceNow Security Incident, CrowdStrike Falcon, Okta, IBM QRadar SIEM, Microsoft Exchange, and Snowflake.

Introduction

AlienVault USM is a unified security management platform designed to bring together multiple security capabilities — asset discovery, vulnerability assessment, intrusion detection, behavioral monitoring and SIEM (security information and event management) — into a single console. AT&T Cybersecurity

Available as both on-premises (USM Appliance) and cloud/ hybrid (USM Anywhere) deployments, it aims to enable organizations of varying sizes to detect threats, respond to incidents and support compliance from day one.

Why I Picked It

I selected AlienVault USM because it stands out in the crowded security-management tool market by offering a true “all-in-one” foundation: many organizations struggle with multiple point solutions (one for SIEM, one for IDS, one for vulnerability scanning, etc.), and USM consolidates those into a unified platform.

The fact that it integrates built-in threat intelligence (via AT&T/Alien Labs) and supports both on-premises and cloud environments gives it flexibility and real-world practicality for today’s hybrid IT world.

Standout Features

• Asset discovery & inventory: It automatically detects devices, servers, cloud assets, etc., helping organizations build a complete inventory of what needs protection.
• Vulnerability assessment: Continuous scanning of assets to identify patches missing, misconfigurations and other exposures.
• Intrusion detection + behavioral monitoring: Network IDS, host IDS, and behavioural analytics (UEBA-style) help detect anomalous user or entity activity.
• SIEM & event correlation: Log collection, normalization and correlation across devices and environments to provide actionable alerts and reports.
• Integrated threat intelligence: The platform taps into AT&T Alien Labs and the open threat exchange (OTX) to feed real-time threat data, which improves detection and prioritization.
• Deployment flexibility: Options to deploy as an appliance, virtual sensor, or cloud service, enabling on-prem, hybrid, or full-cloud use.

Integrations

AlienVault USM supports extensive integrations via its “AlienApps” / “BlueApps” architecture and plugin library. These integrations allow you to leverage existing security tools and infrastructure rather than rebuild everything.

For example, it can integrate with cloud platforms (AWS, Azure), identity systems (SSO/SAML), endpoint/security tools, and ticketing/ITSM systems. It also supports generic webhook ingestion for custom event feeds.

The broad plugin list (covering hundreds of vendors/devices) means your log sources, firewalls, endpoints, cloud services, etc., can feed into USM for unified visibility. 

Introduction

Logpoint Converged SIEM is a cybersecurity solution that consolidates different security functions to enhance threat detection and incident response. It provides organizations of all sizes with a comprehensive platform to centralize data and manage risks.

Why I Picked

I picked Logpoint Converged SIEM because it centralizes data ingestion for security and compliance, which improves threat detection and response. This feature is vital for your team as it allows you to have a unified view of security data, making it easier to identify and address potential threats. Additionally, Logpoint's automation capabilities, with over 80 automated playbooks, streamline investigations and responses. This reduces the workload on your security teams, enabling them to focus on more strategic tasks.

Another reason for choosing Logpoint is its case management feature, which facilitates tracking and collaboration on incident investigations. This ensures thorough oversight and helps your team to manage incidents more effectively. The platform also includes Logpoint NDR, which utilizes AI and machine learning to identify advanced threats before they escalate, providing an added layer of security.

Standout Features

Features include centralized data ingestion, which improves security and compliance by offering a unified view of security data. Automation is another key feature, with over 80 playbooks that reduce the workload on security teams by streamlining investigations and responses. Lastly, the case management feature facilitates tracking and collaboration on incident investigations, ensuring thorough oversight and efficient incident management.

Integrations

Integrations include Checkpoint Firewall, Cisco, Cisco Umbrella, CrowdStrike, CiscoAmp, DUO Security, and more.

Introduction

RSA NetWitness is a cybersecurity platform that offers advanced tools for threat detection, investigation, and response. It provides a suite of solutions tailored for organizations looking to enhance their security posture against complex threats.

Why I Picked

I picked RSA NetWitness as a good SIEM tool because of its real-time visibility into log data across IT environments. This feature simplifies threat detection and ensures compliance, which is crucial for any organization aiming to maintain a secure network. Additionally, its network threat detection capabilities, including full-packet capture, allow you to monitor emerging threats effectively.

Another reason is its ability to monitor endpoint activity through its endpoint detection and response module. This feature is essential for quickly detecting and responding to threats, including non-malware attacks. With these capabilities, your team can identify and mitigate risks before they escalate, making RSA NetWitness a reliable choice for comprehensive threat management.

Standout Features

Features include the orchestration and automation capabilities of its security operations module, which enhance your security team's efficiency. The platform supports various industries, offering tailored solutions to meet specific needs. Additionally, RSA NetWitness provides incident response, professional services, and educational training, ensuring you get the most out of its solutions.

Integrations

Integrations include Azure Monitor, AWS S3, Cisco AMP, Google Cloud Platform, Cisco ASA, Symantec Endpoint Protection, Microsoft Windows, McAfee Endpoint Security, CyberSponse CyOps, ThreatConnect, Cisco ThreatGRID, and Symantec DeepSight.

Introduction

Graylog is a platform that offers a range of Security Information and Event Management (SIEM) solutions specifically designed to enhance cybersecurity for enterprises. It focuses on data collection, analysis, and visualization, enabling organizations to monitor and respond to security threats.

Why I Picked

I picked Graylog as a good SIEM tool because of its real-time log management capabilities. This feature allows you to monitor security events as they happen, which is crucial for identifying and mitigating potential security incidents promptly. Additionally, Graylog offers contextual risk scoring, which helps reduce false positives, saving you time and resources in managing alerts and focusing on genuine threats.

Another reason to consider Graylog is its automated workflows for incident response. These workflows streamline the process of responding to security threats, enabling your team to act quickly and efficiently. The platform's support for flexible deployment options, whether cloud, on-prem, or hybrid, also ensures that you can integrate it into your existing infrastructure without major disruptions.

Standout Features

Features include intelligent threat detection, which helps in identifying potential threats before they become problematic. The platform also offers adversary campaign intelligence, providing insights into the tactics and strategies used by attackers. Additionally, Graylog's threat coverage analysis allows you to evaluate and strengthen your defenses by understanding the areas that need improvement.

Integrations

Integrations include AWS Kinesis/CloudWatch Input, Palo Alto Networks Input, IPFIX Input, Forwarder, and Script Alert Notification.

Introduction

Fortinet FortiSIEM is a sophisticated Security Information and Event Management (SIEM) tool designed to elevate your security operations. It offers a comprehensive suite of features that help you detect threats in real time and automate incident responses, ensuring your network remains secure and compliant.

Why I Picked

I chose Fortinet FortiSIEM for its exceptional capability in real-time threat detection. This feature allows you to identify potential security threats as they occur, providing you with the opportunity to respond promptly and minimize risk. Additionally, FortiSIEM's advanced analytics offer deep security insights, enabling your team to understand and mitigate vulnerabilities more effectively.

Another reason FortiSIEM stands out is its automated incident response. This functionality streamlines the process of handling security incidents, reducing the burden on your team and allowing them to focus on more strategic tasks. With FortiSIEM, you can ensure that incidents are managed quickly and efficiently, minimizing downtime and potential damage.

Standout Features

Features include a configuration management database (CMDB) that offers comprehensive asset monitoring, ensuring you have visibility over your entire network. The tool supports over 2800 correlation rules that help in identifying patterns indicative of potential threats. Additionally, FortiSIEM provides built-in SOAR automation, which simplifies security operations by automating routine tasks, allowing your team to concentrate on more critical issues.

Integrations

Integrations include AWS, Microsoft Azure, Google Cloud, Oracle Cloud, Cisco, ServiceNow, Salesforce, Jira, Bitdefender, Citrix, Claroty, and Acronis.

LogRhythm SIEM is a centralized log management platform that helps security teams identify and respond to security threats.

Why I picked LogRhythm SIEM: I put LogRhythm SIEM on this list because it offers a robust on-premise solution, which makes it a great option for companies that are subject to regulatory requirements. It provides a host of modules that help companies in highly regulated industries comply with requirements like HIPAA, GDPR, and FISMA. The modules can detect violations in real-time and create reports for compliance audits.

LogRhythm SIEM Standout Features and Integrations:

Features that impressed me about LogRhythm SIEM are its log management features, which can consolidate log and event data from hundreds of sources. The platform also uses machine learning to identify users in the network who deviate from normal patterns and may pose a security risk.

Integrations are available natively with over 950 log sources and cloud providers like AWS, Fortinet, Qualsys, SentinelOne, and VMWare.

IBM Security QRadar SIEM is a scalable SIEM platform that collects security-related data from endpoint devices and applications across a network. It enables security teams to monitor their IT infrastructure from one location.

Why I picked IBM Security QRadar: I chose IBM Security QRadar SIEM for its advanced threat detection capabilities. It uses AI with network and user behavior analytics to detect security threats in near real-time. I also liked that the platform assigned each offense a magnitude score based on severity, which made it easier for me to prioritize the most critical issues.

IBM Security QRadar SIEM Standout Features and Integrations:

Features that differentiate IBM Security QRadar SIEM, in my opinion, include its native integrations with over 700 security products, which offers extensive network visibility. Another feature that stood out to me is the platform’s security operations center (SOC). I could easily drill down into each threat and get more details about each.

Integrations are available natively with over 370 applications and 450 device support modules (DSM) like Amazon AWS Network Firewall, Cisco ACE Firewall, and Google Cloud Audit Logs. You can also use IBM’s Universal Cloud REST API to create custom integrations.

ConnectWise SIEM, formerly Perch, is a SIEM platform that enables IT solution providers to help their clients protect their networks against cybersecurity attacks.

Why I picked ConnectWise SIEM: ConnectWise SIEM deserves a spot on this list, in my opinion, because it’s specifically built for IT service providers. It offers flexible on-premise and cloud deployments and comprehensive risk assessments that help you understand the state of your clients’ IT infrastructure. One thing I liked is that ConnectWise SIEM performs automated network scans and prioritizes potential threats based on their impact.

ConnectWise SIEM Standout Features and Integrations:

Features that make ConnectWise SIEM a good fit for IT solution providers are its service level objectives (SLOs) that you can set for your clients. I think SLOs are a great way to set clear expectations and help clients see the value of a SIEM platform. ConnectWise SIEM also enables you to help companies meet compliance and regulatory requirements.

Integrations are available natively through the ConnectWise Marketplace. Notable partners include Fortinet, Perimeter 81, Orbitera, SonicWall, and Trend Micro.

Datadog Cloud SIEM is a cloud-native SIEM solution that analyzes operational and security logs across your technology stack, giving operational teams a high-level view of the company’s security posture.

Why I picked Datadog Cloud SIEM: During my testing, I was impressed by the visualizations that the platform offered. The interface made it easy to visualize activities across users and services. This level of visibility greatly improved collaboration, as my team and I could drill down into incidents and get to the root cause of security threats.

Datadog Cloud SIEM Standout Features and Integrations:

Features that make Datadog Cloud SIEM stand out to me include its out-of-the-box threat detection rules that enable companies to improve their network security without spending huge amounts of time configuring them. For companies with specific requirements, Data Cloud SIEM includes a code-free editor that lets you create your own rules.

Integrations are available natively with over 600 applications, identity providers, and endpoints. Notable integrations include AWS, Azure DevOps, Redis, and Jira.

ArcSight Enterprise Security Manager delivers real-time threat detection and analytics. It helps organizations reduce their threat exposure and comply with regulatory requirements.

Why I picked ArcSight Enterprise Security Manager: What I liked about ArcSight Enterprise Security Manager is its powerful workflow automation features. Once it detects a threat, it classifies and automatically assigns a case to an analyst. You can manually set up these workflows or “playbooks” based on your needs.

ArcSight Enterprise Security Manager Standout Features and Integrations:

Features that make ArcSight Enterprise Security Manager stand out are its event correlation engine which can track thousands of events per second and send alerts if it detects suspicious activity. I found customizing these rule sets to fit a range of SIEM use cases straightforward.

Integrations are available natively with ArcSight Intelligence to enhance threat detection and ArcSight Recon to improve log management. ArcSight Enterprise Security Manager also integrates natively with SOC tools like Qualys, AhnLab, and Satrix.

Splunk Enterprise Security is a modern SIEM solution that helps companies gain a unified view of their security posture, with advanced threat detection, risk-based alerts, and flexible deployment options. Fergal Glynn, CMO and AI Security Advocate of Mindgard, shared: “My most favorite Splunk feature is Risk-Based Alerting. It only fires when a real threat surpasses set thresholds. It helps me cut through noise and simply shows me the alerts that truly matter.”

Why I picked Splunk Enterprise Security: Splunk Enterprise Security offers all the features you’d expect from a SIEM tool — threat detection, security analytics, rapid response, etc. But what makes Splunk stand out is its risk-based alerting, which triggers alerts when incidents cross certain thresholds. This helps cut down on “alert fatigue” and false positives, so your team can prioritize risks that pose real threats.

Splunk Enterprise Security Standout Features and Integrations:

Features that I feel are worth highlighting here include its out-of-the-box detections for over 1,300 threats, which include detailed descriptions and techniques to address them. Splunk Enterprise Security also includes automated playbooks that provide rapid responses and resolutions to common security threats.

Integrations are available natively with over 1,000 platforms. Notable integrations include AWS, Google Cloud Platform, Kubernetes, OpenShift, and MongoDB.

Rapid7 InsightIDR is a cloud-based platform that combines SIEM and extended detection and response (XDR) capabilities to enhance threat detection and reduce response times.

Why I picked Rapid7 InsightIDR: I chose Rapid7 InsightIDR because it offers extensive endpoint protection for devices connected to a network. Enhanced Endpoint Telemetry (EET) provides detailed activity logs on all endpoint devices. It gives context surrounding each incident so that security teams can respond faster.

Rapid7 InsightIDR Standout Features and Integrations:

Features that I feel make Rapid7 InsightIDR a SIEM tool worth considering include its intrusion detection system that can quickly recognize suspicious activities. It provides traffic metadata, giving you a clear picture of what’s happening on the network. Another feature worth mentioning is the pre-built workflows that allow you to automate responses to common threats.

Integrations are available natively with various cloud services, DevOps platforms, and firewalls. Notable partners include Atlassian, AWS, Cisco, ServiceNow, and Snyk.

Exabeam SIEM is a cloud-native SIEM tool that can collect, store, and analyze log data at scale. It uses advanced behavioral analytics to detect threats that other tools may miss.

Why I picked Exabeam SIEM: I picked Exabeam SIEM for its extensive log management capabilities. The platform boasts over 9,000 pre-built log parsers that can turn large volumes of log data into machine-readable text. With the query-builder wizard, security analysts can instantly query log data and refine their search over multiple iterations.

Exabeam SIEM Standout Features and Integrations:

Features that stood out to me about Exabeam SIEM include its intuitive correlation rule builder. Normally, I find it tedious to work with correlation rules as they can result in false positives if they’re not properly set up. But I found it easy to build correlation rules in Exabeam Fusion SIEM that fit my specific use cases.

Integrations include pre-built connectors with over 540 third-party security tools across 292 vendors. Notable data sources include AWS CloudTrail, Google Cloud Platform, Microsoft SQL Server, Tanium Core Platform, and OpenShift.

Microsoft Azure Sentinel is a cloud-based SIEM solution that can ingest data from a range of sources and detect threats before they escalate. It’s built on the Azure platform, which provides flexibility and scalability.

Why I picked Microsoft Azure Sentinel: What makes Microsoft Azure Sentinel an impressive SIEM tool, in my opinion, is its ability to collect and analyze data at cloud scale — something important to consider, especially if your company uses multiple cloud providers. I also like that it integrates natively with the Azure cloud computing platform, as this means it can automatically scale to fit all security needs.

Microsoft Azure Sentinel Standout Features and Integrations:

Features that I feel distinguish Microsoft Azure Sentinel include its advanced security analytics, which uses AI to detect threats and reduce the number of false positives. This makes it easier to prioritize incidents that pose legitimate threats. The platform also offers a workflow management system with pre-defined rules to automate security tasks at scale.

Integrations include over 130 pre-built data connectors to sources like AWS, Citrix, Elastic, Ivanti, and Juniper. You can also use the platform’s REST APIs to integrate with other data connectors.

Elastic Security gives you a holistic view of your data no matter where it resides. It provides centralized log management and rapid response capabilities to boost network security.

Why I picked Elastic Security: I put Elastic Security on this list because of its impressive scope of native integrations. It can ingest metrics, logs, and events from a range of data sources, allowing you to get a more complete view of your security posture. One-click integrations made it easy for me to add new sources and expand SIEM visibility.

Elastic Security Standout Features and Integrations:

Features that I feel are worth mentioning about Elastic Security include its interactive tools that help you conduct a root cause analysis of an incident and implement new rules to prevent future instances. You can also use rules that Elastic threat researchers and community members created to enhance threat detection.

Integrations are available natively with applications, databases, network devices, and workplace tools. Notable integrations include AWS, Apache Spark, Microsoft Azure, Cisco Umbrella, and Jira. You can also use the platform’s REST APIs to connect to more sources.

ManageEngine EventLog Analyzer is a SIEM solution with a real-time log correlation engine that alerts you to suspicious activities in your network. Steve Morris, Founder and CEO at NEWMEDIA.COM, noted, “Compliance reporting went from monthly soup to dashboards. Audits are now a drop-down export instead of a forensic report.”

Why I picked ManageEngine EventLog Analyzer: ManageEngine EventLog Analyzer offers impressive log management features in a single console. But the main reason I put this platform here is that it offers a file integrity monitoring (FIM) module that detects unauthorized modifications to sensitive files and system folders. It provides audit trails of any changes made to a file and notifies administrators of incidents that could indicate a breach.

ManageEngine EventLog Analyzer Standout Features and Integrations:

Features that differentiate ManageEngine EventLog Analyzer include its built-in syslog server that collects log data from network devices like servers, routers, and firewalls. The dashboard made it easy for me to drill down and gain insights into any security event.

Integrations include native support for over 750 log sources, such as database platforms, endpoint security solutions, firewalls, routers, and web servers. Notable integrations include AWS Cloud Trail, Microsoft SQL Server, Symantec Endpoint Protection, SonicWall, and Solaris.