More than 90 people across 16 different countries have been arrested in a coordinated raid targeting users and sellers of a piece of malware, called the Blackshades Remote Access Tool. Known to its friends simply as "RAT," the $40 utility makes it relatively easy to spy on someone via their PC's webcam and their keyboard strokes, and it's thought to have infected around half a million computers since 2010. In the US, the FBI picked up a user in New Jersey who's accused of using RAT to steal sexually explicit photos of 45 victims through their webcams. This follows two earlier Blackshades-related arrests of men accused of capturing and stealing images of thousands of women and girls. The "global takedown" also involved the arrest of a 24-year-old Swedish citizen who's charged with selling RAT and offering technical support to buyers, making as much as $350,000 in the process.