Las últimas herramientas para descifrar contraseñas

El descifrado de contraseñas y las herramientas para descifrar contraseñas asociadas suelen ser el área de la seguridad de la información y el hacking que más entusiasma a la gente, oh, vaya, puedo descifrar contraseñas de correo electrónico. Recibimos correos electrónicos casi todos los días preguntando cómo descifrar la contraseña de Facebook de alguien, o recuperar las credenciales de un sitio web, etc.

¿Qué es el descifrado de contraseñas?

Como se define comúnmente:
In cryptanalysis and computer security, password cracking is the process of recovering passwords from data that have been stored in or transmitted by a computer system. A common approach (brute-force attack) is to try guesses repeatedly for the password and check them against an available cryptographic hash of the password.The purpose of password cracking might be to help a user recover a forgotten password (installing an entirely new password is less of a security risk, but it involves System Administration privileges), to gain unauthorized access to a system, or as a preventive measure by system administrators to check for easily crackable passwords. On a file-by-file basis, password cracking is utilized to gain access to digital evidence for which a judge has allowed access but the particular file's access is restricted.
De Wikipedia.