Zeek (formerly Bro) is the world’s leading platform for network security monitoring. Flexible, open source, and powered by defenders. Zeek has a long history in the open source and digital security worlds. Vern Paxson began developing the project in the 1990s under the name “Bro” as a means to understand what was happening on his university and national laboratory networks. Vern and the project’s
![The Zeek Network Security Monitor](https://cdn-ak-scissors.b.st-hatena.com/image/square/ec14470501fd82d3d33ae32f2d8281f6cccd2028/height=288;version=1;width=512/https%3A%2F%2Fi0.wp.com%2Fzeek.org%2Fwp-content%2Fuploads%2F2024%2F03%2Fcropped-zeek-favicon.png%3Ffit%3D512%252C512%26ssl%3D1)