Quora

Quora, the popular question-and-answer website suffered a data breach incident after hackers broke into one of its systems and compromised information from approximately 100 million users.

The company discovered that a malicious third party had gained unauthorized access to one of its systems and compromised account information, including names, email addresses and encrypted passwords,

Some User-imported data from other social networks was also taken.

Source: https://www.databreaches.net/a-popular-qa-website-says-hackers-stole-information-on-100-million-users/

"id": "QUO158301222",
"linkid": "quora",
"type": "Data Leak",
"date": "12/2018",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"