Your email account may be among the hundreds of millions that were exposed in a massive data breach.
Security experts say it could be the largest data breach ever with 773 million email addresses and 21 million passwords, according to Fortune.
The breach appears to come from several different sources. The data was posted to a hacking forum, and was discovered by a cybersecurity researcher.
To find out if your email has been hacked visit haveibeenpwned.com.