Apple Warns Employees to Stop Leaking Information to Media

•Company memo says it found 29 ‘leakers’ last year, 12 arrested •CEO Tim Cook pledged to ’double down’ on secrecy in 2012

Apple Inc. warned employees to stop leaking internal information on future plans and raised the specter of potential legal action and criminal charges, one of the most-aggressive moves by the world’s largest technology company to control information about its activities.

The Cupertino, California-based company said in a lengthy memo posted to its internal blog that it “caught 29 leakers,” last year and noted that 12 of those were arrested. “These people not only lose their jobs, they can face ...