Peel back the layers of your network and make your adversaries cry!
Free platform for threat hunting, enterprise security monitoring, and log management.
Questions: http://securityonion.net/discuss
Security Onion and Linux Kernel Copy Fail Vulnerability CVE-2026-31431
https://blog.securityonion.net/2026/05/security-onion-and-linux-kernel-copy.html
Security Onion Documentation Printed Book Now Updated for Security Onion 3.0!
https://blog.securityonion.net/2026/04/security-onion-documentation-printed.html
Early Bird Discount for "Security Onion for Analysts and Threat Hunters" Class Running Virtually in August 2026!
https://blog.securityonion.net/2026/04/early-bird-discount-for-security-onion.html
Introducing a new PCAP tool - OhMyPCAP
OhMyPCAP is a standalone web application for analyzing PCAP files:
Security Onion 2.4.211 Hotfix 20260407 Now Available!
https://blog.securityonion.net/2026/04/security-onion-24211-hotfix-20260407.html
RE: https://infosec.exchange/@securityonion/116325111071158999
ICYMI Security Onion 3 is now available!
Security Onion 3.0.0 Now Available with New and Improved Interface and Much More!
https://blog.securityonion.net/2026/03/security-onion-300-now-available-with.html
Security Onion 3.0.0 Now Available with New and Improved Interface and Much More!
https://blog.securityonion.net/2026/03/security-onion-300-now-available-with.html
Doug Burks
