Security is paramount. Security involves defence in depth. Approaching security one step at a time, with consistency and rigour, you can mitigate threats, and keep intruders at bay.

Intruders use a variety of different techniques in an attempt to compromise a system. For example, systems can be attacked by denial of service, cracking, intrusion, snooping (intercepting the data of another user), or viruses/worms/Trojan horses. To have a secure box, a system therefore needs a variety of defences.

https://www.linuxlinks.com/best-free-open-source-vulnerability-detection-tools/

4 Best Free and Open Source Vulnerability Detection Tools - LinuxLinks

Vulnerability scanning is an essential activity for enterprise security. We recommend the best open source vulnerability detection tools.

^{Steve Emms (LinuxLinks)}