At least Google have the honesty to admit that there is no such thing as privacy. In the United Kingdom we have a Civil Service that can't practice what they preach. The latest Government Department to admit to "losing" personal information is the Department of Justice. Once again it's the old problem of copying information on to laptops or data sticks. The fact that individuals feel that they need their "own" copy of data shows that they don't understand how multi-user databases work. The fact that they are able to make these copies shows that their IT managers are running systems with all the security of free music download sites.
Why not do the simple thing. Hold data centrally, make sure you employ adults to ensure its integrity. Give your employees impressive looking devices to make sure that you can control and monitor who logs into the database and disable the ability to store information on laptops or data sticks.