The Zeek Network Security Monitor

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Zeek is an open source network security monitor.

zeek.org | github.com/zeek | community.zeek.org

Tune in next week for project updates and more from the Zeek LT:

https://zeek.org/events/

Not sure if Zeek training is right for you? This post can help: https://zeek.org/2025/11/inside-zeek-training-at-nsf-cybersecurity-summit/

If you're ready to join us at the next summit, register here: https://www.trustedci.org/2026-regional-summit

Zeek: Inside Zeek Training at NSF Cybersecurity Summit

On October 20, 2025, the Zeek team hosted a full-day training at the NCAR facility in Boulder as part of the NSF Cybersecurity Summit. With 52 registrations and about 50 people showing up, the room…

Zeek

From a recent Slack thread: how one community member started writing Zeek scripts by just messing around, not trying to build something perfect.

https://zeek.org/2026/03/your-first-zeek-script-doesnt-need-to-be-perfect/

Package delivery in the latest Zeek newsletter  

In case you missed it: https://community.zeek.org/t/zeek-newsletter-issue-60-february-2026/7953#p-29663-zeek-packages-6

Zeek Newsletter - Issue 60 - February 2026

Welcome to the Zeek Newsletter. In this Issue: Community News Zeek Techniques Community Call Recap Development Updates Packages Get Involved TL;DR: Zeek 8.2 development is underway with strong ZeroMQ performance improvements. CERN workshop registration is full but waitlist spots are available, and the Leadership Team is drafting an AI contribution policy. Community News & Reminders Zeek Workshop at CERN (Mar. 25-26): Registration for our upcoming workshop is currently full. Sign up for...

Zeek
We'll be at CERN next week for two days of Zeek talks and training. Excited to connect with the community!

RE: https://infosec.exchange/@zeek/116205914752048570

We were impressed with this small but mighty script that was shared in our Slack community recently - check it out for yourself 

From this month's newsletter: A tip about pcap-minimizer, handy for debugging scripts and analyzers:

https://community.zeek.org/t/zeek-newsletter-issue-60-february-2026/7953

#Zeek #PCAP #NetworkSecurity #OpenSource

Zeek Newsletter - Issue 60 - February 2026

Welcome to the Zeek Newsletter. In this Issue: Community News Zeek Techniques Community Call Recap Development Updates Packages Get Involved TL;DR: Zeek 8.2 development is underway with strong ZeroMQ performance improvements. CERN workshop registration is full but waitlist spots are available, and the Leadership Team is drafting an AI contribution policy. Community News & Reminders Zeek Workshop at CERN (Mar. 25-26): Registration for our upcoming workshop is currently full. Sign up for...

Zeek

RE: https://infosec.exchange/@zeek/116178696196522235

We've got a free Zeek training coming up at Trusted CI's Regional Cybersecurity Summit (April 21-22). Registration is open now. Head to the newsletter for more details -->

#Zeek #NetworkSecurity #OpenSource #Training

Our latest lightning talk shows you a simple way to know if your alerting pipeline actually works.

https://www.youtube.com/watch?v=zlA-d5Bxn_c

#Zeek #NetworkSecurity #OpenSource #Alerting

Test Your Zeek Alerting Pipeline with a Simple Script

YouTube

RE: https://infosec.exchange/@zeek/116178696196522235

Zeek 8.2 development is underway and our team is actively seeking community feedback before the road to 9.0 continues.

Give us a shout! February newsletter has the details:

#Zeek #NetworkSecurity #OpenSource