Facebook was hacked in 2013. Attacker used a Java browser exploit to take over employees' computers: https://www.reuters.com/article/technology/exclusive-apple

Facebook was hacked in 2013. Attacker used a Java browser exploit to take over employees' computers: https://www.reuters.com/article/technology/exclusive-apple-macs-hit-by-hackers-who-targeted-facebook-idUSBRE91I10C/ https://www.reuters.com/article/technology/exclusive-apple-m... Facebook was also hacked in 2018. A vulnerability in the website allowed attackers to steal the API keys for 50 million accounts: https://news.ycombinator.com/item?id=18094823 https://news.ycombinator.com/item?id=18094823