Facebook paid a cybersecurity firm six figures to develop a zero-day in a Tor-reliant operating system in order to unmask a man who spent years sextorting hundreds of young girls, threatening to shoot or blow up their schools if they didn’t comply, Motherboard’s Vice has learned.
https://nakedsecurity.sophos.com/2020/06/12/facebook-paid-for-a-0-day-to-help-fbi-unmask-child-predator/
https://nakedsecurity.sophos.com/2020/06/12/facebook-paid-for-a-0-day-to-help-fbi-unmask-child-predator/