The hacker PhineasFisher published a detailed explanation of how he has hacked the Italian surveillance firm Hacking Team. He used a zero-day exploit unknown vulnerability to breach the internal network of the company. The hacker also shared his political ideology in the manifesto he published, the hacker explained that he breached the company to its questionable affairs with rogue governments. He also revealed to have breached also a separate network storing the companys source code. He has not provided further details on the vulnerability he exploited, likely because it is still unpatched.”]
Source: https://securityaffairs.co/wordpress/46416/data-breach/how-phineasfisher-hacking-team.html