Phone numbers of over 500 million Facebook users on sale through automated Telegram bot


An automated telegram bot is selling data full of Facebook users’ phone numbers, according to a report by Motherboard. 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.

Image: Reuters

Upon launch, the Telegram bot says “The bot helps to find out the cellular phone numbers of Facebook users,” according to Motherboard‘s tests.

The bot lets users enter either a phone number to receive the corresponding user’s Facebook ID, or visa versa. The initial results from the bot are redacted, but users can buy credits to reveal the full phone number. One credit is $20, with prices stretching up to $5,000 for 10,000 credits. The bot claims to contain information on Facebook users from the US, Canada, the UK, Australia, and 15 other countries.

Motherboard tested the bot and confirmed it contained the real phone number of a Facebook user who tries to keep this number private.

The bot has been running since at least 12 January 2021, according to screenshots posted by Gal, but the data it provides access to is from 2019.

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