In a posting of June 5, 2001, entitled "PGP Marks 10th Anniversary", Zimmermann describes the circumstances surrounding his release of PGP: It was on this day in 1991 that I sent the first release of PGP to a couple of my friends for uploading to the Internet.
在2001年6月5号发表的一篇标题为"PGP 10周年" 的文章中，齐默曼描述了他最初开发PGP时的情景： 1991年的某天，我把PGP的第一版发给我几个朋友，以便上传到互联网。