Many versions of this "software" are merely empty interfaces designed to look legitimate. When you open the program, it asks you to enter the target’s profile URL. It will show a fake loading bar saying, "Decrypting password... 10%." Once it reaches 100%, a pop-up appears: "To verify you are human and receive the password, please complete this short survey."
These programs are frequently "Trojans." Instead of hacking Facebook, they often install keyloggers or ransomware on computer to steal your own banking info and passwords. Survey Scams: Facebook Hacker V1.9 Software
Claims to bypass Facebook's encryption to reveal plain-text passwords. Message Recovery: Many versions of this "software" are merely empty