Credit/Debit Card Monitor

There is a web site that acts as an anti virus for bills - www.billguard.com.  You can register up to 3 credit/debit cards (register more than 3 for a fee).  This web site reviews the transactions billed to the registered cards and does the following:

• Monitors transactions for deceptive, fraudulent,  and suspicious purchases on the registered cards.
• Monitors for unwanted charges like for subscriptions, hidden fees, billing errors, and scams.