Someone really wanted to take a jab at Twitter this week.

A hacker going by the name Mauritania Attacker – from the country of the same name in West Africa – shared information from 15,000 Twitter accounts through a file-sharing site called Zippyshare, featuring name, ID and authentication tokens associated through third-party apps like HootSuite and Instagram. However, it appears passwords were kept safe.

“We have investigated the situation and can confirm that no Twitter accounts were compromised,” said a Twitter spokesperson speaking with Mashable.

This news follows an email that Twitter sent to its users, making sure to authenticate their accounts and keep their information safe. “With a highly visible account like yours, it’s a good idea to be extra careful,” stated the email. “Login verification is a simple way to add more protection to your account.”

Source: Mashable