By BRUCE SCHNEIER

Earlier this month, a mysterious group that calls itself Guardians of Peace hacked into Sony Pictures Entertainment’s computer systems and began revealing many of the Hollywood studio’s best-kept secrets, from details about unreleased movies to embarrassing emails (notably some racist notes from Sony bigwigs about President Barack Obama’s presumed movie-watching preferences) to the personnel data of employees, including salaries and performance reviews. The Federal Bureau of Investigation now says it has evidence that North Korea was behind the attack, and Sony Pictures pulled its planned release of “The Interview,” a satire targeting that country’s dictator, after the hackers made some ridiculous threats about terrorist violence.

via Sony Made It Easy, but Any of Us Could Get Hacked – WSJ.