أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
Pretty Good Privacy (PGP) is a data encryption and decryption computer program that provides cryptographic privacy and authentication for data communication. PGP is often used for signing, encrypting, and decrypting texts, e-mails, files, directories, and whole disk partitions and to increase the security of e-mail communications. So, the answer is (b) Email Security.