The Man Who Stole and Then Sold Data on 178 Million Facebook Users Gets Sued by Facebook

"Facebook has filed a lawsuit on Friday against a Ukrainian national for allegedly scraping its website and selling the personal data of more than 178 million users on an underground cybercrime forum," reports the Record. According to court documents filed Friday, the man was identified as Alexander Alexandrovich Solonchenko, a resident of Kirovograd, Ukraine. Facebook alleges that Solonchenko abused a feature part of the Facebook Messenger service called Contact Importer. The feature allowed users to synchronize their phone address books and see which contacts had a Facebook account in order to allow users to reach out to their friends via Facebook Messenger. Between January 2018 and September 2019, Facebook said that Solonchenko used an automated tool to pose as Android devices in order to feed Facebook servers with millions of random phone numbers. As Facebook servers returned information for which phone numbers had an account on the site, Solonchenko collected the data, which he later collected and offered for sale on December 1, 2020, in a post on RaidForums, a notorious cybercrime forum and marketplace for stolen data. The article also notes that Facebook's court documents say Solonchenko scraped data from some of the largest companies in the Ukraine, including its largest commercial bank and largest private delivery service. And the Record points out that he's not the only person known to have this hole to scrape Facebook's user data and then sell it on the forum.) Days after another incident in April involving 533 leaked phone numbers of Facebook user, Facebook "revealed that it retired the Messenger Contact Importer feature back in September 2019 after it discovered Solonchenko and other threat actors abusing it."

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