Knowledge-sharing site Quora says 100 million users hit by security breach

Eileen GuzmanDec 05, 2018

Today's big data breach has been announced by Q&A site Quora, affecting over 100 million registered users.

If we talk about the specifics of the stolen user data, it might have included names, e-mail addresses, encrypted passwords, and data from other linked networks.

It found that that some user data was compromised by a third party who gained unauthorised access to one of its systems.

The online question-and-answer website Quora suffered a malicious data breach that may have affected up to 100 million accounts, the site's CEO, Adam D'Angelo, said in an official company blog posting late Monday (Dec. 3). Quora said the breach was discovered last Friday, and after it investigated, Quora this week began notifying users by email and with a bright red banner across its help pages.

Quora was founded by D'Angelo, a former Chief Technology Officer at Facebook, in 2009.

"There's little hope of sharing and growing the world's knowledge if those doing so can not feel safe and secure, and can not trust that their information will remain private", the Quora founder wrote.

Massive data breaches have become a common occurrence as hackers exploit vulnerabilities in the information technology systems used by businesses.

So it goes without saying that Quora users should change their passwords.

"We have engaged leading digital forensic and security experts and launched an investigation, which is ongoing".

The hackers also obtained details about users' activity on Quora, such as questions, answers, upvotes and downvotes. It has also notified law enforcement and hired a cybersecurity firm to figure how how the breach occurred.

Quora is logging out everyone who may have been affected by the breach and, if used as an authentication method, is invalidating their passwords.

'We recognize that in order to maintain user trust, we need to work very hard to make sure this does not happen again. The company said people should change their passwords if they use the same ones across different services.

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