Shred or tear up important financial documents. To prevent identity thieves from getting your personal information, you should always shred or tear up important financial documents before you dispose of them. These documents might include credit card statements, credit offers, expired credit cards, bank statements, etc. You should review your credit report at least once a year (not every five years) to verify your accounts and account balances. While paying the entire balance on your credit cards monthly and insisting on a fixed-rate loan when borrowing money are wise financial decisions, they do not necessarily prevent identity thieves from getting your personal information.