Today, one of the biggest security issues faced by companies from around the world is the danger of a data breach. Here is a list of the 21 biggest data breaches of the 21st century (so far).

A data breach is a security incident in which sensitive, protected or confidential data is copied, transmitted, viewed, stolen or used by an unauthorized individual or organization. Here are some of the basics on Data Breaches and some simple steps you can take to help protect yourself from them.