Hacker News Stack - Focus on the really fresh and unread news in Hacker News.
McAfee Network Security Platform - McAfee Network Security Platform guards all your network-connected devices from zero-day and other attacks, with a cost-effective network intrusion prevention system.
Hacker Newsletter - Best of Hacker News in your inbox every Friday.
Suricata - Suricata is a high performance Network IDS, IPS and Network Security Monitoring engine.
Box Piper Hacker News - Re-Imagined Hacker News for this decade.
snort - Snort is a free and open source network intrusion prevention system.