For many years, when it came to email, the only solution was something known as PGP, which was quite complicated and only accessible to the tech-savvy.

这么多年来，对电邮来说，唯一的方法就是PGP（良好隐私密码法）但这个方法非常复杂， 只有精通技术的人才懂得如何使用。

So while PGP does a great job of what it's designed to do, for the people out there who can't understand how to use it, the option to communicate privately simply does not exist.

因此尽管PGP非常有效，但对于不会使用的人来说，通讯隐私方法其实不存在。