The legal right of a taxpayer to decrease the amount of what otherwise would be his taxes, or altogether avoid them, by means which the law permits, cannot be doubted. – George Sutherland
In the US, you even lose legal rights if you store your data in a companys machines instead of your own. The police need to present you with a search warrant to get your data from you but if they are stored in a companys server, the police can get it without showing you anything. – Richard Stallman