Slashdot: Phone Numbers For 533 Million Facebook Users Were Being Sold On Telegram

Phone Numbers For 533 Million Facebook Users Were Being Sold On Telegram
Published on January 31, 2021 at 02:04AM
Slashdot reader DevNull127 writes: This week a security researcher discovered a bot on Telegram that sold the phone numbers of Facebook users for $20 apiece. "The security researcher who found this vulnerability, Alon Gal, says that the person who runs the bot claims to have the information of 533 million users, which came from a Facebook vulnerability that was patched in 2019," reported the Verge. Motherboard reported the bot was also offering "bulk" pricing, selling 10,000 phone numbers for $5,000. Telegram told the New York Post that they'd blocked the bot Tuesday morning, while Facebook downplayed the incident, reminding the Post "This is old data." But the Post notes that Facebook already had more than 1.6 billion daily active users in September 2019, and security researcher Alon Gal posted a count of the millions of affected users in each country, finding 32,315,282 in America, 11,522,328 in the United Kingdom, 7,320,478 in Australia, and 3,494,385 in Canada. But the Verge points out the most ominous message of the breach: that ""the data is still out there on the web" — and that it's already resurfaced, more than once, in the days since it was initially scraped.

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