In a Caesar cipher, each letter in is changed by three. A becomes D, B becomes E, and so on.
Julius Caesar used encryption to cipher letters and messages. These are known as Caesar ciphers.
There are lots of different ways to encrypt a message. find out more with this video from SciShow.
Mia Epner, who works on security for a US national intelligence agency, explains how cryptography allows for the secure transfer of data online.
Video credit Khan Academy
this video explains the Caesar cipher, the first popular substitution cipher, and shows how it was broken with "frequency analysis".
What's the Caesar Cipher?
Video credit: Khan Academy
When a message is sent using cryptography, it is changed (or encrypted) before it is sent.
cryptography comes from greek "Kryptos" and "Graphein" meaning "Hidden word".
Check out these facts on Cryptography!