Don't assume that an "identity thief" is a "hacker" in the computer crime underworld. The "identity thief" may simply obtain the information from a source and then sell the information. However, "identity thieves" are now recruiting "hackers" to obtain access to electronic databases which contain the most choice data. The trafficing of stolen data is a quick operation. The hard earned reputation, financial & banking records as well as personal information such as age, marital status, and children's names can all be sold for a few dollars each. Think about that. If 2 million records are stolen and sold for $2 per record, the "ID Thief" has made a cool $4 million off of what took you years of honest hard work to create. The same technology used to steal your information is often used to sell your information. Your data is often sold through large instant-message groups or via online auctions, both of which may only exist for a few hours or days to avoid detection by authorities.
Here are a few tips that may alert you that your credit information has been compromised.
1) When ever possible go "paperless". You simply receive an email stating that your statement is available online for viewing and you can pay electronically too.
2) If you can't go paperless and you have a mailbox on the curb that anyone can walk by and open, consider getting a PO Box or a lockable mailbox. It is real easy for a thief to simply take a credit card statement containing most of the info they need out of the box on the curb.
3) Monitor your statements. Did you really put $2 worth of gas in the car? One of the ways thieves validate that a stolen card is still active is to charge a very small amount and if the transaction goes through they know that the card is still good.
4) Be alert to creditors calling to verify a telephone number! Creditors performing information verification often call telephone numbers associated with credit applications. The 3 big agencies are not offended when you question why the information is needed. Thieves often take personal information and attempt to open "business accounts" which makes the transaction more difficult to trace.
5) And last but not least, your Social Security Card (and number) should only be used for tax purposes. Says so right on the card. Do not use for ID.