Pretty Good Privacy

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Pretty Good Privacy

Original author(s)	Phil Zimmermann PGP Inc. Network Associates PGP Corp.[1]
Developer(s)	Broadcom Inc.
Initial release	1991; 33 years ago (1991)
Stable release	11.4.0 Maintenance Pack 2 / May 23, 2023; 12 months ago (2023-05-23)[2]
Written in	C
Operating system	macOS, Windows[3]
Standard(s)	OpenPGP: RFC 4880, 5581, 6637 PGP/MIME: RFC 2015, 3156
Type	Encryption software
License	Commercial proprietary software
Website	www.broadcom.com/products/advanced-threat-protection/encryption

Pretty Good Privacy (PGP) is an encryption program that provides cryptographic privacy and authentication for data communication. PGP is used for signing, encrypting, and decrypting texts, e-mails, files, directories, and whole disk partitions and to increase the security of e-mail communications. Phil Zimmermann developed PGP in 1991.^[4]

PGP and similar software follow the OpenPGP standard (RFC 4880), an open standard for encrypting and decrypting data. Modern versions of PGP are interoperable with GnuPG and other OpenPGP-compliant systems.^[5]