That’s why mobile security, which protects portable devices such as smartphones and tablets against cyber threats, is an increasingly important component of any digital security strategy.

Encryption converts readable data into unreadable code that cannot be easily deciphered by ... Any measure taken to protect mobile devices against vulnerabilities is an example of mobile security.

A validation code—also known as a CVV, CV2, or CVV2 code—is a series of three or four numbers located on the front or back of a credit card.