Credit Card Skimming and How to Avoid It

By Bryce Casson, Founder · Cardocrat · Updated June 2026
The short answer: Skimming is when criminals attach a hidden device to a card reader (often gas pumps and ATMs) to steal your card data. Using chip or contactless instead of the magnetic stripe, checking readers for tampering, and monitoring your statements are the best defenses.

How skimming works

A skimmer is a small device a thief attaches over or inside a card reader that captures the data on your magnetic stripe, sometimes paired with a tiny camera or fake keypad to grab your PIN. Gas station pumps and standalone ATMs are the classic targets because they are unattended. The stolen data is used to make counterfeit cards or fraudulent charges.

How to protect yourself

Use the chip or contactless instead of swiping whenever possible, since those generate a one-time code that skimmers cannot reuse. Tug on the card reader and inspect the keypad for anything loose or mismatched before using a pump or ATM, prefer pumps near the entrance or indoor ATMs, and cover the keypad when entering a PIN.

If you are hit

Watch your statements and set transaction alerts so you catch fraud fast. Credit cards carry $0 fraud liability, so report unauthorized charges immediately for a new card and a reversal. Using a credit card (not a debit card) at pumps and ATMs adds a layer of protection, since debit fraud pulls real money from your account.

Frequently asked questions

How can I avoid credit card skimming?
Use chip or contactless instead of swiping, inspect card readers and keypads for tampering before use, cover the keypad when entering a PIN, and monitor your statements with alerts.
Am I liable if my card is skimmed?
Credit cards carry $0 liability for fraudulent charges, so you are protected if you report it promptly. This is one reason to use a credit card rather than a debit card at gas pumps and ATMs.

Related reading

Find your best card Read card reviews More articles
Bryce Casson

Bryce Casson, Founder of Cardocrat. Every card is ranked by what it actually returns, with all points valued at a flat 1 cent and offers verified against issuer sources. About the author.