Quora, a site where people ask and answer questions, said hackers breached its network and accessed sensitive personal data for about 100 million users. The compromised information includes passwords, full names, email addresses, direct messages, answer requests, downvotes and all public user data.
Quora officials said in a post published late Monday afternoon, that they discovered the unauthorized access on Friday and have since hired a digital forensics and security firm to investigate
The service logged out all users who were impacted by the data breach, invalidating old passwords. If you are a users who chose the same password to protect accounts on different services you should immediately change those passwords.