FireEye denies 'hack back' claims detailed in new book
Mandiant is pushing back against a claim in David Sanger's new book that its researched was partly aided by 'hacking back' into Chinese government systems.
Security firms sometimes wreck FBI investigations. Here's how.
Publishing research about hackers can boost a cybersecurity firm's reputation but muddle the hard work of federal law enforcement agencies. The government said the trouble is only increasing.