The leak contains details of 6.1 million users from India, 32.3 million from the US, 11.5 million from the UK and 7.3 million from Australia.
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“All 533,000,000 Facebook records were just leaked for free. This means that if you have a Facebook account, it is extremely likely the phone number used for the account was leaked.” Alon Gal, co-founder and chief technical officer of cybersecurity firm Hudson Rock, tweeted.
All 533,000,000 Facebook records were just leaked for free.This means that if you have a Facebook account, it is… https://t.co/al14wH4qPB
— Alon Gal (Under the Breach) (@UnderTheBreach) 1617450741000
When contacted for comment, a Facebook spokesperson told ET, “This is old data that was previously reported on in 2019. We found and fixed this issue in August 2019.”
In a second tweet, Gal said: “In early 2020 a vulnerability that enabled seeing the phone numbers linked to every Facebook account was exploited, creating a database containing the information of 533 million users across all countries.” Details include phone number, Facebook ID and full name, and “bad actors will certainly use the information for social engineering, scamming, hacking and marketing”, he added.
India is among the biggest markets for Facebook and its group companies WhatsApp and Instagram. According to government data, India has 53 crore WhatsApp users, 41 crore Facebook users, and 21 crore users of Instagram.