These programs often contain "keyloggers" that record everything you type—including your bank passwords, credit card numbers, and personal emails.

Go to facebook.com and follow the prompts to find your account.

Most "v3.0" downloads are actually Trojans. Once you run the installer, it can lock your files for ransom or infect your system with viruses.

Regardless of the motive, using third-party "hacker" software is never the solution. It is against Facebook’s Terms of Service and, in many jurisdictions, illegal. How to Properly Recover Your Facebook Account