The OSSEC free intrusion detection and host-based intrusion prevention system detects and fixes security problems in real time at the operating system level with functions such as log analysis, file integrity checks, Windows registry monitoring, and rootkit detection. It can be deployed virtually anywhere and supports the Linux, Windows, and macOS platforms.

This sample attack will show you some of the techniques intruders use to scale up their powers.

Professional attackers have much more pointed at your site than just Nmap, and you should too if you want to test your network’s security. We’ll show you some tools intruders use to gather information.