Best Free SIEM Software

Empower Your Current Team to Achieve Enterprise-Level Security with Blumira SIEM An all-in-one solution with SIEM, endpoint visibility, 24/7 monitoring, and automated response to reduce complexity, increase visibility and speed up time to respond. We handle the security heavy lifting, so you get time back in your day. A SIEM with out-of-the-box detections, pre-filtered alerts, and response playbooks, IT teams can achieve real security value with Blumira. Quick Deployment, Immediate Results: the SIEM integrates with your tech stack and fully deploy, with no warm-up period, in hours All-You-Can-Eat Data Ingest: Predictable pricing and with unlimited data logging for a SIEM with full-lifecycle detection Compliance Made Easy: 1 year data retention included, pre-built reports, and 24/7 automated monitoring 99.7% CSAT Support: Solution Architects for product support, the Incident Detection and Response Team creating new detections, and 24/7 SecOps support

Log360 is a one-stop solution for all your log management and network security challenges. This tightly-integrated solution combines the capabilities of ADAudit Plus, EventLog Analyzer, O365 Manager Plus, Exchange Reporter Plus, and Cloud Security Plus. With a versatile combination like this, you'll gain complete control over your network; you'll be able to audit Active Directory changes, network device logs, Microsoft Exchange Servers, Microsoft Exchange Online, Azure Active Directory, and your public cloud infrastructure all from a single console. Monitor and audit critical Active Directory changes in real time. Meet stringent requirements of regulatory mandates such as PCI DSS, FISMA, HIPAA, SOX, GLBA, GPG 13, and the GDPR by means of readily available reports. Receive exhaustive information in the form of audit reports on critical events in Azure Active Directory and Exchange Online.

ADAudit Plus helps keep your Windows Server ecosystem secure and compliant by providing full visibility into all activities. ADAudit Plus provides a clear picture of all changes made to your AD resources including AD objects and their attributes, group policy, and more. AD auditing helps detect and respond to insider threat, privilege misuse, and other indicators of compromise, and in short, strengthens your organization's security posture. Gain granular visibility into everything that resides in AD, including objects such as users, computers, groups, OUs, GPOs, schema, and sites, along with their attributes. Audit user management actions including creation, deletion, password resets, and permission changes, along with details on who did what, when, and from where. Keep track of when users are added or removed from security and distribution groups to ensure that users have the bare minimum privileges.

ManageEngine EventLog Analyzer is an on-premise log management solution designed for businesses of all sizes across various industries such as information technology, health, retail, finance, education and more. The solution provides users with both agent based and agentless log collection, log parsing capabilities, a powerful log search engine and log archiving options. With network device auditing functionality, it enables users to monitor their end-user devices, firewalls, routers, switches and more in real time. The solution displays analyzed data in the form of graphs and intuitive reports. EventLog Analyzer's incident detection mechanisms such as event log correlation, threat intelligence, MITRE ATT&CK framework implementation, advanced threat analytics, and more, helps spot security threats as soon as they occur. The real-time alert system alerts users about suspicious activities, so they can prioritize high-risk security threats.

Sumo Logic offers a cloud solution for log management and metrics monitoring for IT and security teams of organizations of all sizes. Faster troubleshooting with integrated logs, metrics and traces. One platform. Many use cases. Increase your troubleshooting effectiveness. Sumo Logic helps you reduce downtime and move from reactive to proactive monitoring with cloud-based modern analytics powered by machine learning. Quickly detect Indicators of Compromise (IoCs), accelerate investigation, and ensure compliance using Sumo Logic Security Analytics. Enable data-driven business decisions and predict and analyze customer behavior using Sumo Logic’s real-time analytics platform. The Sumo Logic platform helps you make data-driven decisions and reduce the time to investigate security and operational issues so you can free up resources for more important activities.

Standing watch, by your side. Intelligent security analytics for your entire enterprise. See and stop threats before they cause harm, with SIEM reinvented for a modern world. Microsoft Sentinel is your birds-eye view across the enterprise. Put the cloud and large-scale intelligence from decades of Microsoft security experience to work. Make your threat detection and response smarter and faster with artificial intelligence (AI). Eliminate security infrastructure setup and maintenance, and elastically scale to meet your security needs—while reducing IT costs. Collect data at cloud scale—across all users, devices, applications, and infrastructure, both on-premises and in multiple clouds. Detect previously uncovered threats and minimize false positives using analytics and unparalleled threat intelligence from Microsoft. Investigate threats with AI and hunt suspicious activities at scale, tapping into decades of cybersecurity work at Microsoft.

Go from data to business outcomes faster than ever before with Splunk. Splunk Enterprise makes it simple to collect, analyze and act upon the untapped value of the big data generated by your technology infrastructure, security systems and business applications—giving you the insights to drive operational performance and business results. Collect and index log and machine data from any source. Combine your machine data with data in your relational databases, data warehouses and Hadoop and NoSQL data stores. Multi-site clustering and automatic load balancing scale to support hundreds of terabytes of data per day, optimize response times and provide continuous availability. The Splunk platform makes it easy to customize Splunk Enterprise to meet the needs of any project. Developers can build custom Splunk applications or integrate Splunk data into other applications. Apps from Splunk, our partners and our community enhance and extend the power of the Splunk platform.

Built on the Graylog Platform, Graylog Security is the industry’s best-of-breed threat detection, investigation, and response (TDIR) solution. It simplifies analysts’ day-to-day cybersecurity activities with an unmatched workflow and user experience while simultaneously providing short- and long-term budget flexibility in the form of low total cost of ownership (TCO) that CISOs covet. With Graylog Security, security analysts can: 1. Decrease risk and metrics like mean time to detect (MTTD) by aligning threat detection coverage to meet your security objectives 2. Reduce TCO with native data routing and data tiering functionality 3. Reduce key metrics like mean time to respond (MTTR) by quickly resolving the alerts that matter. Graylog Security is a robust, scalable solution that empowers analysts to detect and respond to cybersecurity threats efficiently. With integrated SOAR functionality, it automates repetitive tasks, orchestrates workflows, and accelerates incident response.

Hybrid SIEM solution combining real-time (event) log monitoring with comprehensive system health & network monitoring provides users with a complete picture of their servers and endpoints. The included security event log normalization & correlation engine with descriptive email alerts provides additional context and presents cryptic Windows security events in easy to understand reports that offer insight beyond what is available from raw events. EventSentry's NetFlow component visualizes network traffic, can detect malicious activity and offers insight into bandwith usage. Keeping track of Active Directory changes is easy with EventSentry's ADMonitor component that records all changes to AD & Group Policy objects and provides a complete user inventory to help identify obsolete accounts. Various integrations & multi-tenancy available.

We know engineers love open source. So we supercharged the best open source monitoring tools — including ELK, Prometheus, and Jaeger, and unified them on a scalable SaaS platform. Collect and analyze your logs, metrics, and traces on one unified platform for end-to-end monitoring. Visualize your data on easy-to-use and customizable monitoring dashboards. Logz.io’s human-coached AI/ML automatically uncovers errors and exceptions in your logs. Quickly respond to new events with alerting to Slack, PagerDuty, Gmail, and other endpoints. Centralize your metrics at any scale on Prometheus-as-a-service. Unified with logs and traces. Add just three lines of code to your Prometheus config files to begin forwarding your metrics to Logz.io for storage and analysis. Quickly respond to new events by alerting Slack, PagerDuty, Gmail, and other endpoints. Logz.io’s human-coached AI/ML automatically uncovers errors and exceptions in your logs.

SOC Prime operates the world’s largest and most advanced platform for collective cyber defense that cultivates collaboration from a global cybersecurity community and curates the most up-to-date Sigma rules compatible with over 28 SIEM, EDR, and XDR platforms. SOC Prime’s innovation, backed by the vendor-agnostic and zero-trust cybersecurity approach, and cutting-edge technology leveraging Sigma language and MITRE ATT&CK® as core pillars are recognized by the independent research companies, credited by the leading SIEM, XDR & MDR vendors, and trusted by 8,000+ organizations from 155 countries, including 42% of Fortune 100, 21% of Forbes Global 2000, 90+ public sector institutions, and 300+ MSSP and MDR providers. Driven by its advanced cybersecurity solutions, Threat Detection Marketplace, Uncoder AI, and Attack Detective, SOC Prime enables organizations to risk-optimize their cybersecurity posture while improving the ROI of their SOC investments.

Complete visibility over the entire organization from a centralized management dashboard. All solutions in the stack are fully integrated with each others and report to a central database. This facilitates daily tasks such as monitoring, investigations and incident response. Active and passive vulnerability scanners for early detection, with of the box reports for compliance audits. Track and manage accounts access and permission changes. Get alerted when suspicious activity happens. Remotely manage your environment and respond to attacks right from your dashboard. Keep track of changes and access to classified information. Protect endpoints and servers with advanced threat protection.

Bootstrap and build out your cybersecurity posture with Zercurity. Reduce the time and resources spent monitoring, managing, integrating, and navigating your organization through the different cybersecurity disciplines. Get clear data points you can actually use. Get an instant understanding of what your current IT infrastructure looks like. Assets, applications, packages, and devices are examined automatically. Let our sophisticated algorithms find and run queries across your assets. Automatically highlighting anomalies and vulnerabilities in real-time. Expose threats to your organization. Eliminate the risks. Automatic reporting and auditing cuts remediation time and supports handling. Unified security monitoring for your entire organization. Query your infrastructure like a database. Instant answers to your toughest questions. Measure your risk in real-time. Stop guessing where your cybersecurity risks lie. Get deep insights into every facet of your organization.

We questioned every assumption about SIEM and rebuilt it from the ground up. The result is a faster, cheaper, and higher fidelity security data platform designed to detect threats like never before. Attackers are not using sophisticated techniques to compromise your systems. They are logging into legitimate accounts and using them to move laterally. Detecting these compromises is hard for even the most sophisticated teams. RunReveal collects all of your logs, filters out the noise, and tells you about the things that are happening in your systems that really matter. Whether you have petabytes or gigabytes, RunReveal can correlate threats across all of your log sources and deliver high-quality alerts out of the box. We've invested in security controls that give us a strong foundational security program. Our philosophy is that by improving our security posture, it allows us to understand our customers even better.

The market-leading SIEM delivers comprehensive visibility, empowers accurate detection with context, and fuels operational efficiency. Unmatched, comprehensive visibility by seamlessly ingesting, normalizing, and analyzing data from any source at scale enabled by Splunk's data-powered platform with assistive AI capabilities. Utilize risk-based alerting (RBA) which is the industry’s only capability from Splunk Enterprise Security that drastically reduces alert volumes by up to 90%, ensuring that you're always honed in on the most pressing threats. Amplify your productivity and ensure the threats you're detecting are high fidelity. Native integration with Splunk SOAR automation playbooks and actions with the case management and investigation features of Splunk Enterprise Security and Mission Control delivers a single unified work surface. Optimize mean time to detect (MTTD) and mean time to respond (MTTR) for an incident.

Elevate your security with LevelBlue USM Anywhere, an advanced open XDR platform designed to scale with your evolving IT landscape and growing business needs. Combining sophisticated analytics, robust security orchestration, and automation, USM Anywhere offers built-in threat intelligence for quicker and more precise threat detection, as well as streamlined response coordination. Its flexibility is unmatched, with extensive integrations—referred to as BlueApps—that enhance its detection and orchestration across hundreds of third-party security and productivity tools. These integrations also enable you to trigger automated and orchestrated responses effortlessly. Begin your 14-day free trial now and discover how our platform simplifies cybersecurity.

M365 Manager Plus is an extensive Microsoft 365 tool used for reporting, managing, monitoring, auditing, and creating alerts for critical activities. With its user-friendly interface, you can easily manage Exchange Online, Azure Active Directory, Skype for Business, OneDrive for Business, Microsoft Teams, and other Microsoft 365 services all from one place. M365 Manager Plus provides exhaustive preconfigured reports on Microsoft 365 and helps you perform complex tasks including bulk user management, bulk mailbox management, secure delegation, and more. Monitor Microsoft 365 services around the clock, and receive instant email notifications about service outages. M365 Manager Plus eases compliance management with built-in compliance reports and offers advanced auditing and alerting features to keep your Microsoft 365 setup secure.

Fortify your digital landscape with Altoverra. We make it simple. Our Managed SIEM harmonizes your cybersecurity, keeping threats at bay while your business performs seamlessly.

DNIF provides a high value solution by combining technologies such as the SIEM, UEBA and SOAR into one product at an extremely low total cost of ownership. DNIF's hyper scalable data lake makes it ideal to ingest and store terabytes of data. Detect suspicious activity using statistics and take action before any damage occurs. Orchestrate processes, people and technology initiatives from a single security dashboard. Your SIEM will come built-in with essential dashboards, reports and response workflows. Coverage for threat hunting, compliance, user behavior monitoring and network traffic anomaly. In-depth coverage map with the MITRE ATT&CK and CAPEC framework. Maximize your logging capacity without fretting over costs—double, perhaps even triple your capacity with your existing budget. With the HYPERCLOUD, the fear of overlooking crucial information is a thing of the past. Log everything, leave nothing behind.