Apple, Facebook and Twitter were targeted by an exploit that bypassed built-in antivirus software. Facebook said its security team spotted signs of an infection, which it chased down. Twitter’s director of information security said that attackers accessed data that included “usernames, email addresses, session tokens and encrypted/salted versions of passwords” Facebook said it immediately shared threat intelligence with other affected businesses, though didn’t name them. F-Secure’s Sullivan said all mobile app developers should assume they’ve been targeted.”]
Source: https://www.darkreading.com/attacks-breaches/apple-facebook-twitter-attacks-6-key-facts