How to Check if Your Yahoo, Gmail or AOL Passwords Were Leaked

Samantha Murphy
Hackers Force Apple, Amazon to Change Security Policy

Yahoo confirmed on Thursday that its user-generated contributor network Yahoo! Voices was the subject of a massive data breach, with more than 400,000 usernames and passwords stolen from its servers.

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But it wasn't just Yahoo! email addresses that have been infiltrated: Gmail, MSN, Comcast and AOL accounts have also been hacked. (Yahoo! Voices allows you to sign in with non-Yahoo! email addresses.)

Thanks to Sucuri Malware Labs, you can now check to see if your email account was a part of the leak: .

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The leaked email account information first early Thursday morning by a hacker group called "D33ds". Because the passwords were stored unencrypted, the long list of usernames and passwords were posted in text for all to see.

The news comes just one day after 420,000 member accounts from social network were compromised, and a few weeks after millions of passwords were leaked online from sites such as LinkedIn, eHarmony and

"At Yahoo! we take security very seriously and invest heavily in protective measures to ensure the security of our users and their data across all our products," the company said in a statement.


The company said that an older file from Yahoo! Contributor Network -- which it acquired when it purchased Associated Content -- contained about 400,000 Yahoo! and other company usernames and passwords that were stolen.

"We are fixing the vulnerability that led to the disclosure of this data, changing the passwords of the affected Yahoo! users and notifying the companies whose users accounts may have been compromised," the company said. "We apologize to affected users."

Yahoo! also encouraged users to regularly update passwords and familiarize themselves with safety tips at .

This story originally published on Mashable .