Zeek (formerly Bro) is the world’s leading platform for network security monitoring. Flexible, open source, and powered by defenders.

(Note that "Zeek" is the new name of what used to be known as the "Bro" network monitoring system. The old "Bro" name still frequently appears in the system's documentation and workings, including in …

3 days ago · About Zeek What Is Zeek? Zeek is a passive, open-source network traffic analyzer. Many operators use Zeek as a network security monitor (NSM) to support investigations of suspicious or …

Jan 29, 2026 · Schedule We aim to publish a new Zeek release about every four months. For users seeking more stability, we maintain dedicated long-term support (LTS) releases with one year of …

Scripts are Bro’s “Magic Ingredient” Bro comes with >10,000 lines of script code.

Why Choose Zeek? Zeek is a powerful network analysis framework that is much different from the typical IDS you may know. (Zeek is the new name for the long-established Bro system. Note that …

Dec 7, 2018 · Monitoring HTTP Traffic with Bro Bro can be used to log the entire HTTP traffic from your network to the http.log file. This file can then be used for analysis and auditing purposes. In the …

May 25, 2018 · Zeek 3.0.0 by Robin Sommer | Sep 23, 2019 | 3.0.0, bro, Zeek (Note: This is a slightly updated version of a previous posting announcing the initial release candidate.) We just published …

Dec 7, 2018 · Overview Bro is a passive, open-source network traffic analyzer. It is primarily a security monitor that inspects all traffic on a link in depth for signs of suspicious activity. More generally, …

Visit the post for more. About the Zeek Project The Network Security Platform Trusted Worldwide Zeek is an open-source software platform that generates compact, high-fidelity transaction logs, file …