GreyNoise's IP Check tool can be used to see if your router or other network-attached devices are secretly being used for a botnet.

He launched a learning game at 16 that now reaches millions of students worldwide. Here’s what we can learn from this young founder.

Want to keep testing your knowledge of gaming trivia? We've got loads more PC Gamer quizzes, on everything from healthbars to weird currencies to absurd patch notes. You may have already seen that ...