Breaking News: Facebook Hacked in January; Says Data Safe

Privacy experts are up in arms that Facebook has just announced, weeks later, that they were hacked in January, but are just sharing the news today along with a claim that no user data was accessed.

Here's their explanation:

Facebook, like every significant internet service, is frequently targeted by those who want to disrupt or access our data and infrastructure. As such, we invest heavily in preventing, detecting, and responding to threats that target our infrastructure, and we never stop working to protect the people who use our service. The vast majority of the time, we are successful in preventing harm before it happens, and our security team works to quickly and effectively investigate and stop abuse.

Last month, Facebook Security Discovered that our systems had been targeted in a sophisticated attack. This attack occurred when a handful of employees visited a mobile developer website that was compromised. The compromised website hosted an exploit which then allowed malware to be installed on these employee laptops. The laptops were fully-patched and running up-to-date anti-virus software. As soon as we Discovered the presence of the malware, we remediated all infected machines, informed law enforcement, and began a significant investigation that continues to this day.

We have found no evidence that Facebook user data was compromised.

As part of our ongoing investigation, we are working continuously and closely with our own internal engineering teams, with security teams at other companies, and with law enforcement authorities to learn everything we can about the attack, and how to prevent similar incidents in the future.

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