A skimmer is a fake reader snapped over a real one. The deScammer is a $129.99 tool that flags that overlay.

On a gas pump or an ATM, the fake piece sits over the real card reader. Your card hits that cover before it reaches the machine underneath.

Look before you pay. A skimmer is often loose, crooked, or sitting proud of the housing. Check the keypad too. A blocked keypad, or one that looks thicker than the rest of the machine, is a reason to stop.

If the reader looks wrong, do not use it. Pay inside. Tell the station. Do not pocket it.

The deScammer is $129.99. See the deScammer. Add to cart on that page. If you want to see it in person, it is at 555 Beach Street.

Lawful use only.