The largest social network in the world is the latest high-profile site to say it's been hacked this year – but it says no ndta about its more than a billion users was compromised.
Facebook described the "sophisticated attack" in a blog post on Friday, saying it took place in January when a small number of employees visited a compromised website that installed malware on their machines.
Twitter announced a similar intrusion earlier this month, and major news organizations including The New York Times, Wall Street Journal and Washington Post have also admitted to being hacked.
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