The details of 13 million Mac users have been leaked

MacKeeper, an anti-virus tool for Apple Mac users, has leaked the details of over 13 million users, according to researcher Chris Vickery.

The flaw has now been addressed.

Vickery found a section of the MacKeeper website that, when accessed without a password or username, allowed him to see the details of customer information, including names, email addresses, user names, passwords, phone numbers, system information, and more.

Beyond this error, Vickery found that the passwords MacKeeper stored were not secure. Passwords are protected by a “hashing” algorithm that takes the plain text — e.g. “password1234” — and turns it into something only a computer can read. MacKeeper was using a outdated, and easily crackable, algorithm, according to Vickery.

The MacKeeper team wrote a blog post detailing the steps they had taken to address the issue.

“Analysis of our data storage system shows only one individual gained access performed by the security researcher himself,” they wrote. “We have been in communication with Chris and he has not shared or used the data inappropriately.”

This is all good news, but the fact that the company — which deals in computers — left such a large amount of data available to anyone is worrying.

Business Insider has reached out to MacKeeper to ask about the hack. We will update the post when we hear back.

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