June 21, 2021 5 min read
Opinions expressed by Entrepreneur contributors are their own.
Opinions expressed by Entrepreneur contributors are their own.
 
Opinions expressed by Entrepreneur contributors are their own.
 
Opinions expressed by Entrepreneur contributors are their own.
 
This post was originally published on June 24, 2019, and was updated on June 7, 2021.
 
The practice of protecting sensitive information with codes and ciphers is thousands of years old. Today, it’s a technical art form that secures digital data that is being sent, received or stored.