Take a good look at your credit card statement, thieves are racking up charges on cards through electronic devices called 'skimmers.' It's happening so much, local police are investigating.
How to Spot a 'Skimming' Device. Wow really. This didn't even get close to what the heading was. Thanks for wasting my time. This did not show how to spot them.
If you tell everyone what to look for, the crooks will just figure out a new way to conceal the skimmer. Comparing card readers is a great tip, probably the best they could give, without exposing their research on skimmers.