Cyberwar

The notorious hacktivist collective Anonymous has targeted everyone from PayPal to the FBI. But a string of arrests have crippled the group. So who is Anonymous now?

Sony Pictures was hacked and the U.S. blamed North Korea. But the government's evidence wasn't all that convincing, and many hackers and computer experts still have doubts.

Authoritarian regimes are using spyware tools bought from private companies in the West. Hacker PhineasFisher targeted these companies to reveal their deals to suppress dissent.