Cybercriminals have published private messages obtained from 81,000 Facebook users' accounts, including intimate communications between two lovers.
Once hackers obtained conversations, they proceeded to sell them online for 10 cents (8 British pence) per account - a small sum that multiplied by 81,000 could've been a lucrative haul for the hackers were they not shutdown by local police.
Talking to Wired, Facebook Executive Guy Rosen said, "We have contacted browser-makers to ensure that known malicious extensions are no longer available to download in their stories". Rosen said the social network had notified law enforcement, had the website hosting the Facebook account data had been taken down.
Charlie Nash is a reporter for Breitbart Tech.
The little icons sit alongside your URL address bar patiently waiting for you to click on them. These messages were then apparently offered for sale via several websites, one of which was tracked to Russian Federation.More news: Khashoggi's Remains Dissolved in Acid for Easier Disposal
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Facebook claims that its service didn't suffer any breach, and asserts that this data has been obtained by the hackers via malicious extensions. Behind the scenes, though, the extension would connect to Facebook and steal information from a victim's logged in account.
The embattled network has had a awful year for data security and questions will be asked about whether it is proactive enough in responding to situations like this that affect large numbers of people.
The breach was first discovered in September.
A reply in English came from someone calling themself John Smith.
Once started, it would connect to a variety of Facebook URLs and steal information from them.
He claimed that his hacking group could offer data from 120 million users, of whom 2.7 million were Russians. This seems unlikely, however, as Facebook would have noticed such a substantial breach, according to cyber-security company Digital Shadows, which has been working with the BBC.
Earlier this year, Facebook was embroiled in a scandal after it was revealed that a London-based political consultancy Cambridge Analytica had improperly accessed user information to build profiles on American voters that were later used to help elect US President Donald Trump in 2016.