Drew Angerer/Getty Images Facebook got hacked, it announced last week, and there have been fears attackers could use the stolen data to break into users' accounts on Tinder, Spotify, Airbnb, and elsewhere. On Tuesday, Facebook said there is no evidence of that sort of thing happening. But it's still not clear who is behind the attack, or what they were after. Facebook says it can't find any evidence that the hackers who compromised 50 million users' accounts on the social network also used stolen "keys" to break into victims' accounts on other apps and services. Last week, the Silicon Valley tech firm revealed it had been targeted in a massive hack that saw an as-yet-unidentified attacker, or attackers, gain access to tens of millions of users' accounts by exploiting vulnerabilities in its software.See the rest of the story at Business InsiderNOW WATCH: Apple might introduce three new iPhones this year — here’s what we knowSee Also:The Facebook hack affecting 50 million people also let the attackers access users' Tinder, Spotify, and Instagram accountsFacebook announced it got hacked and 50 million accounts were compromised.