Microsoft Corp. and U.S. authorities are investigating an extraordinary computer break-in at Microsoft's headquarters by hackers believed to have stolen the blueprints to its most valuable software, including the latest versions of Windows and Office, people . . .
Microsoft Corp. and U.S. authorities are investigating an extraordinary computer break-in at Microsoft's headquarters by hackers believed to have stolen the blueprints to its most valuable software, including the latest versions of Windows and Office, people familiar with the situation said.
