This is one of the earliest cyber security tools which is used to detect vulnerabilities in Windows Operating Systems. It is a fee tool which can be used to discover the weakness in the password of the system and also for password recovery. Cain and Abel can do many functions like recording VoIP communications.
Some additional functions of Cain and Abel are revealing cached passwords, password boxes and using brute force for cracking encrypted passwords.
Download Link: https://github.com/xchwarze/Cain