If you have a Yahoo account, this might be a good time to update your security settings and change your password.

According to cnet.com, Yahoo revealed that at least half a billion of its users were hacked from a 2014 leak.

It's one of the largest scale attacks at a time when massive hacks have become commonplace.

The internet pioneer said it's "working closely with law enforcement" on the breach, and believe that it was from a "state-sponsored actor," though it did not specify what country.

According to USA Today, Yahoo has stated that the information may have included names, email addresses, telephone numbers, dates of birth, and, in some cases, encrypted or unencrypted security questions and answers.

Yahoo is urging its users who haven't changed their passwords since 2014 to do so as soon as possible.