Facebook acknowledges personal information of 500M users posted online, says data is ‘old’

The phone numbers and personal data of more than 500 million Facebook users has been posted online by a low-level hacker in a forum for free.

Alon Gal, CTO of Hudson Rock, a cybercrime intelligence firm first discovered the leak on Saturday.

“All 533,000,000 Facebook records were just leaked for free,” he wrote in a tweet. “This means that if you have a Facebook account, it is extremely likely the phone number used for that account was leaked.”

https://twitter.com/UnderTheBreach/status/1378314424239460352?s=20

“This is old data that was previously reported on in 2019,” a Facebook spokesperson said. “We found and fixed this issue in August 2019.”

2:12 Big Tech CEOs testify on spread of misinformation, extremism online before Congress

However, according to Gal, the vulnerability allowed hackers to see the phone numbers and other personal information of Facebook users.

Get daily National news

Get the day's top news, political, economic, and current affairs headlines, delivered to your inbox once a day.

Sign up for daily National newsletter Sign Up

By providing your email address, you have read and agree to Global News' Terms and Conditions and Privacy Policy.

“It was severely under-reported and today the database became much more worrisome,” he wrote.

By Gal’s count, 3,494,385 users in Canada were affected.

https://twitter.com/UnderTheBreach/status/1378316259499110402?s=20

Global News has reached out to Facebook to confirm how many accounts have been affected in Canada and to determine how the company is handling the leak, but did not immediately hear back.

However, Gal said user’s phone numbers, full names, locations, birthdate, email addresses, and relationship status are among the details leaked.

5:11 Why Facebook banned news in Australia

“Bad actors will certainly use the information for social engineering, scamming, hacking and marketing,” he wrote.