_____ is a powerful encryption tool released by Philip Zimmerman in the year 1991.
_____ is a powerful encryption tool released by Philip Zimmerman in the year 1991. Correct Answer
This encryption program package name PGP (Pretty Good Privacy) became popular across the globe because it helps in providing authentication in data communication as well as help in maintaining privacy through cryptographic algorithms by encryption & decryption of plain texts (in emails and files) to cipher texts and vice versa.