Why Is Email Encryption Difficult?

The subject line, To, and From fields are generally sent unencrypted, so surveillance agencies monitoring Internet traffic can monitor who's communicating with who and even see each email's subject. Email encryption is a patch on top of an unencrypted system, encrypting only the message body.

Why do people not use email encryption?

Businesses rarely encrypt their email messages because good encryption is too hard to use. That's changing. Most business-to-business communication involves sensitive information – stuff that the parties really don't want others to know about.

What is the easiest way to encrypt an email?

In message that you are composing, click File > Properties. Click Security Settings, and then select the Encrypt message contents and attachments check box. Compose your message, and then click Send.