Blumira is described as ''s end-to-end platform offers both automated threat detection and response, enabling organizations of any size to more efficiently defend against cybersecurity threats in near real-time' and is an app in the security & privacy category. There are three alternatives to Blumira for Linux, Mac, SaaS and Windows. The best alternative is Splunk, which is free. Other great apps like Blumira are AlienVault and DNIF.
Splunk is software that provides unique visibility across your entire IT infrastructure from one place in real time. Only Splunk enables you to search, report, monitor and analyze streaming and historical data from any source.
Alienvault integrates and correlates many popular network and security monitoring tools in one suite, inlcuding OSSEC, nfdump, log analyzers, nagios, and nessus and analyzes it against its own community-driven threat feed.