Quora Data Breach: 100M Users Personal Data Stolen by Hackers

9 days ago

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MASSIVE data breach alert! Quora.com has just been hacked. As a result of the hackers’ attack, potentially sensitive personal data of about 100M users has been accessed. The Typical Student team learned what to do if you are a registered Quora user.

 

Which User Information Was Stolen?

 

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According to ARS Technica, passwords, full names, email addresses, linked networks data have been affected. Also, multiple non-public content and actions, including direct messages, answer requests and downvotes have been stolen.  Public content and actions, questions, answers, comments, and upvotes - all of that has been affected.

 

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After Quora reps learned about the security breach on November 30, they immediately began emailing affected users. Quora’s Monday post stated as follows: “We believe we’ve identified the root cause and taken steps to address the issue, although our investigation is ongoing, and we’ll continue to make security improvements.”  

 

Why Did Security Breach Happen?

 

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The company didn’t go into details as to the format of the stolen password data. Quora only said password data was “encrypted” probably meaning the passwords were passed through a one-way hash function.

 

According to ARS Technica, “If it's one that uses fewer than 10,000 iterations of a fast algorithm such as MD5 with no cryptographic salt, hackers using off-the-shelf hardware and publicly available word lists can crack as many as 80% of the password hashes in a day or two.” As of now, Quora is working out the ways to minimize the damage caused by the data breach.

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