Before the election, I noted that private information of Samuel "Joe the Plumber" Wurzelbacher had been stolen, and it had been stolen in such a way (no way to know who had logged into the system, test account open for years, multiple individuals using the same log on information) that it seemed that someone had really dropped the ball on security. However, lest I give the impression that people's information is only menaced by insecure government (or large corporate) systems, I would like to present the example of the Intel Itanium Processor. The design for the Itanium processor, like Joe the Plumber's personal information, was stolen. This is true even though the Itanium processor was undoubtedly protected by the most sophisticated security available.
The moral of the story - if it has value, it is at risk of being stolen. Whether your personal information is stored on a government server with minimal security, or on a corporate server with encryption limited access, there is no such thing as complete safety.