Credit Card Fraud

I'm not exactly sure how it happened, but this week someone at a high school in Beaverhead Idaho started making online charges using my girlfriend's credit card number. No sign of a virus on the computer she was using. But she did have a problem trying to make an online purchase last week. She typed in all of her info and hit the submit button, but she never got a confirmation screen that said the transaction was completed successfully. Needless to say, I went into panic mode and took all of my computers offline and scanned them for anything that looked unusual. Then I went and put fraud alerts on all of my accounts. Despite the use of security software and multiple firewalls, careless operation can still put you at risk. If we followed all of CERT's recommendations for browser security, half of the web sites you visit would not work properly.