Good morning, Garden City! If you're at #AFCEATechnet Augusta this week, come see us at booth P11 and learn about using Security Onion to peel back the layers of your network and make the bad guys cry.

Registration is NOW OPEN for Augusta Cyber Week 2026, from October 19-24. This includes a four day instructor-led Security Onion training course, the twelfth annual Security Onion Conference, and wrapping up with BSides Augusta! See the link for more details. blog.securityonion.net/2026/08/regi...

Registration Now Open for Augusta Cyber Week 2026!

Registration is now open for Augusta Cyber Week in beautiful Augusta GA from October 19, 2026 through October 24, 2026! This includes: 4-day...

blog.securityonion.net

One of the new features that we released in Security Onion 3.2 last week was Investigative Playbooks for the included Sigma detection rules.

ICYMI: New Security Onion release last week.

Security Onion@securityonion.bsky.social · 4w ago

Security Onion 3.2.0 is NOW AVAILABLE, with a whole bunch of new features and quality of life improvements. - Initial implementation of Agentic AI functionality - Gemma now available - Datastream Lifecycle Management - ES|QL support for Sigma rules - Updates to nearly two dozen major components

Security Onion 3.2.0 is NOW AVAILABLE, with a whole bunch of new features and quality of life improvements. - Initial implementation of Agentic AI functionality - Gemma now available - Datastream Lifecycle Management - ES|QL support for Sigma rules - Updates to nearly two dozen major components

Excited to be sponsoring BSides Atlanta this year - looking forward to seeing everyone in October! bsidesatl.info

We are once again hosting our annual user conference in beautiful Augusta, GA on October 23, and we want to hear from you! securityonionsolutions.com/conference/

HAPPY BIRTHDAY TO US! Today marks the twelfth birthday of Security Onion Solutions -- a dozen years of providing training, support, and other services on top of the free and open Security Onion platform. Here's to many more!

USING SOFTWARE RAID? We've identified an issue with an updated release of mdadm that could cause problems for Security Onion deployments using software RAID filesystems. If that applies to you, this blog post has more information: blog.securityonion.net/2026/07/poss...

Curious about the Human-Centered Investigative Playbook (HCIP) standard that underlies our Guided Analysis feature? If you're going to be at @bsidespgh.bsky.social this week, come see our Senior Engineer @infosecgoon.bsky.social, presenting in the afternoon on that very topic. Hope to see you there!

JUST POSTED: We've just released an update to our Introduction to Security Onion overview video, recorded with Security Onion 3. youtu.be/xKWn_YlVOGo

Introduction to Security Onion 3

YouTube video by Security Onion

youtu.be

DID YOU KNOW? Security Onion Pro includes a feature called Manager of Managers, or MoM, which leverages the Security Onion API to allow access to other Security Onion installations in your environment from a central console.

Security Onion Pro: Manager of Managers

YouTube video by Security Onion

youtu.be

DID YOU KNOW? It's possible to enable or disable Suricata NIDS rules in Security Onion using regular expressions -- if you want to turn off all of those ET INFO or TOR alerts, this is an easy way to do it. And the best part is it will apply to new rules that are added to the set in the future.

🚀Introducing SO-CRATES 1.0 — Security Onion Containerized Rapid Analysis of Threats, Evil, and Sus! SO-CRATES is a single container image for analyzing pcap files, log files, and binary files. It was formerly known as OhMyPCAP.

On this day in 2009 the very first release of Security Onion hit the Internet. A lot has changed since then, but it's still the best free and open solution to help you peel back the layers of your network and see what's really happening.

Good morning Charm City! If you're at #AFCEATechnet, come to booth 3242 to see the legendary Michael Stokes and learn about using Security Onion to peel back the layers of your network.

It's time for O's, Bohs, and SO -- Security Onion Solutions is coming to Baltimore! Looking forward to seeing all our friends at #AFCEATechnet in Charm City this week, come see us at booth 3242 to find out how we can help you peel back the layers of your network and make the bad guys cry.

Security Onion 3.1.0 Hotfix 20260528 Now Available! We've released a hotfix to Security Onion 3.1.0 to address issues for deployments with Heavy Nodes or custom Logstash pipelines - please check out this blog post for more information. blog.securityonion.net/2026/05/secu...

Our printed documentation book has been updated for Security Onion 3.1 and is available from Amazon now!

IT'S TIME FOR SOUP! Security Onion 3.1.0 is now available and includes new features, updated components, and many quality-of-life improvements! Get all the details on our blog: blog.securityonion.net/2026/05/secu...

Security Onion 3.1.0 Now Available with Elastic 9.3.3, Suricata 8.0.5, Zeek 8.0.8, and much more!

Security Onion 3.1.0 is now available and includes new features, updated components, and many quality of life improvements! For a full scree...

blog.securityonion.net

DID YOU KNOW? Starting in version 2.4.170, Security Onion Pro users have access to a new type of Security Onion node, the Hypervisor Node.

SAVE THE DATE! We will once again be hosting the Security Onion Conference in beautiful Augusta, GA on October 23rd. Registration will open on August 7.

Security Onion Conference 2026 Save the Date and CFP

This year

blog.securityonion.net

ICYMI: Last week we had a webinar with our friends from Garland Technology on using their TAPs and packet brokers along with Security Onion for a holistic view of what's happening on your network. Check it out! www.youtube.com/watch?v=VvBl...

See Everything, Miss Nothing Enhancing Threat Detection with Complete Packet Visibility

YouTube video by Garland Technology

youtube.com

THURSDAY: Join our Senior Engineer Matthew Gracie, along with Chris Bihary and our friends from Garland Technology, for the webinar "See Everything, Miss Nothing: Enhancing Threat Detection with Complete Packet Visibility and Full Packet Capture".

Microsoft Virtual Events Powered by Teams

Microsoft Virtual Events Powered by Teams

events.gcc.teams.microsoft.com

DID YOU KNOW? Security Onion can be configured to automatically perform reverse DNS lookups to provide hostname information in the SOC interface. Just turn on the "enableReverseLookup" function in Configuration and enjoy!

Security Onion and "Dirty Frag": blog.securityonion.net/2026/05/secu...

THROWBACK THURSDAY: Who remembers the name of our original hunting interface from the early days of Security Onion? It was really hard to let it go. #tbt

Security Onion 2.4.211 Hotfix 20260407 Now Available! blog.securityonion.net/2026/04/secu...

Security Onion 3.0.0 Now Available with New and Improved Interface and Much More! blog.securityonion.net/2026/03/secu...

Security Onion 3 is coming soon! Are you ready?