Security researchers observed sextortion scammers launching new attack campaigns that leverage image spam and other clever techniques to trick users into fulfilling their demands. Some attackers are using image spam, a technique that goes back to at least 2005, by sending along only an image of a ransom note. The problem with this approach is that victims cant follow the notes instructions or copy the attacker-owned bitcoin address included in the image. Another variant relied on a fake CIA investigation to scare users into paying.”]