If you are not using end-to-end encrypted messaging on your phone already, the U.S. government has a warning message for you ...

if encrypted messages were being exchanged between Caesar and one of his centurions, both parties would have to know the key—in this case, how many letters forward or backwards in the alphabet ...

The most simple version of encryption is a basic replacement cipher. If you use numbers to indicate letters in the Latin alphabet, A=1, B=2, et cetera, you can send a message as that code.

At the heart of any cryptosystem is the key: a secret value an algorithm uses to encrypt or decrypt data. The Caesar cipher is a simple example. It works by mapping the existing alphabet to one ...

For its 21st birthday, Gmail wants to make sending end-to-end encrypted (E2EE) emails much easier for companies in regulated industries. The goal is to “enable enterprise users to send E2EE ...

Think twice before sending your next text message. Or better yet, make sure you are using an end-to-end encryption method. End-to-end encryption helps ensure that only the intended recipients can ...