security

Many organisations used forward proxies to block large parts of the Internet. They can also be used to obfuscate the identify of users where multiple users all connect through the same proxy. ...

This challenge is to build your own version of John the Ripper or CrackStation. These are password cracking tools that can be used to recover passwords, by penetration testers and of course bad guys. ...

A port scanner is an program that probes a host to identify open network ports. Malicious actors use port scanners to find network services running on a host in order to find and exploit vulnerabilities. Security analysts and network administrators use port scanners to confirm network security policies are being complied with. ...