Yahoo warns users that their email accounts may have been hacked, again

500 million Yahoo users' accounts were hacked.

For the third time in less than six months, Yahoo is warning users that their email accounts may have been hacked.

In December the Internet giant confirmed that a data breach back in 2013 had put a billion users' accounts at risk. The company also said at the time that the incident was believed to be completely separate from the hack Yahoo reported in September, which involved 500 million accounts.

Read more: Amazon users targeted by phishing scam after bank account info

Now, Yahoo is notifying users that their accounts may have been hacked sometime between 2015 and 2016, but the company did not say how many people may have been affected.

Read the full details at Clark.com.

Read more: