How Credit Card Skimming Works - and How to Avoid It (2024)

Published: September 06, 2017

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3 Minutes

If you’re lucky, you’ve never encountered a card skimmer. These small, illegal devices fit on top of real card readers at self-service sale terminals. They’re designed to blend in with the rest of the machine, so they can be tough to spot.

Here’s how credit card skimming works

As you slide your credit or debit card into a compromised machine, the card skimmer reads the magnetic strip on your card and stores the card number. Your PIN can be captured, too, if a fake keypad was placed over the real one. Later, a thief scoops up the information and either sells it or uses it himself.

The number of compromised cards at U.S. ATMs and merchants rose 70 percent in 2016, according to FICO’s Card Alert Service. But you can learn how to avoid credit card skimmers.

You’re most likely to see these devices at gas pumps, ATMs or metro station ticket kiosks. But if your card leaves your sight at a restaurant or department store, an employee could use a skimmer to get your card info, too.

How to detect and help avoidcredit card skimming

1. Go inside to pay or get money

Sometimes, avoiding card skimming isn’t about detecting a device. It can be about modifying your behavior, says Eva Velasquez, CEO and president of the Identity Theft Resource Center.

If you can pay for your gas inside a station or use an ATM inside a bank lobby, take the extra minute to go inside for the transaction.

When you pay at a point-of-sale terminal that sits right next to a clerk, you’re much less likely to encounter a skimmer.

2. Check out the location

If you can’t go inside to make a transaction, then check out your location to make sure it’s skimmer-unfriendly.

Thieves look for undetected, uninterrupted access to point-of-sale terminals. That’s why gas pumps are appealing—they’re away from the watchful eye of the clerks.

Make sure the machine is in a brightly lit area where lots of people walk past it often.

3. Inspect the card reader

So, you’ve checked out the location, and it seems secure. Now it’s time to check out the machine. Use this quick “SCAN” checklist next time you’re at a card reader:

  • S: Scan the area for hidden cameras that record you typing your PIN. These may be mounted near the keypad, so always cover your hand while you type in a PIN.
  • C: Compare the card reader and keypad to the rest of the machine. The colors and styles should all match, and graphics should be aligned and unobscured.
  • A: Assess for obvious signs of tampering. The panels may be broken or dented, or a security seal may be broken.
  • N: Nudge the card reader and keypad. Card skimmers and fake keypads are meant to be removed, so if they feel loose, you may have spotted a skimmer.

If the machine just doesn’t seem right, then report it to the clerk on duty and go to another location.

4. Use the right type of card

Use a credit card—preferably with a chip—if you have one. Here’s why.

If a thief skims your debit card information, it can be a pathway into draining accounts you’ve linked to it: savings, checking, retirement or even a line of credit.

Your liability for unauthorized debit charges is capped at $50, if you report it within two business days. But if someone uses your account and you don't report the theft, after 60 days you may not be reimbursed at all.

Using a credit card with chip technology will make it harder for thieves to skim your data in the first place. But if a thief still gets your credit card info, he can use only that existing account to make unauthorized charges.

5. Monitor your accounts regularly

Check your financial statements to catch fraudulent charges andbank scams—and do it

“In the world that we live in today, checking your statements monthly really isn’t good enough,” Velasquez says.

Set up notifications on your checking account and credit cards. Set alerts that tell you every time a charge is more than, say, $100 or every time there’s a “card not present” transaction. Your phone will tell you via text or email, and it’ll only take seconds to remember whether you made the charge.

If you see fraudulent charges on your statement, report it to the card company immediately and shut down the account.

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Editorial note: Our articles provide educational information for you. LifeLock offerings may not cover or protect against every type of crime, fraud, or threat we write about. Our goal is to increase awareness about cyber safety. Please review complete Terms during enrollment or setup. Remember that no one can prevent all identity theft or cybercrime, and that LifeLock does not monitor all transactions at all businesses.

How Credit Card Skimming Works - and How to Avoid It (2024)

FAQs

How Credit Card Skimming Works - and How to Avoid It? ›

Scammers tend to install credit card skimming devices at pumps that are hard to see. Avoid ATMs in out-of-the-way locations. Kellermann recommends only using ATMs inside your financial institution. Go to another ATM or gas pump when you suspect the presence of a credit card skimmer.

How do I stop my credit card from being scanned? ›

Preventing Credit Card Scanning
  1. Buy a card sleeve or RFID wallet that blocks RFID transmissions.
  2. Stack your cards together to mitigate some of the scanner's ability to read information.
  3. Leave your cards at home and only use cash in public places.

Does tap to pay avoid skimmers? ›

Use tap to pay or contactless pay whenever you can. These methods are usually safer because the skimmer can't grab your card info like it can when you slide or dip. This uses Near Field Communication (NFC) technology, which only works over a very short distance (a few centimeters).

Can skimmers read CVV? ›

E-skimmers or online skimmers mainly look for payment information for fraudulent purchases and theft. Specifically, here's what a threat actor targets: Credit card details - card numbers, expiration dates, CVV codes.

Do RFID blocking cards really work? ›

Does RFID blocking prevent identity theft? RFID blocking tools claim to protect users against identity theft by stopping criminals from scanning your passport's ID chip by just rubbing shoulders with you. In practice, however, RFID blocking does little to help in the most likely identity theft scenarios.

How did my card get skimmed? ›

Skimming occurs when devices illegally installed on or inside ATMs, point-of-sale (POS) terminals, or fuel pumps capture card data and record cardholders' PIN entries, if applicable. Criminals use the data to create fake payment cards and then make unauthorized purchases or steal from victims' accounts.

Can my card be skimmed in your wallet? ›

Similarly to card skimming, card scanning is a type of payment card theft where the fraudster with a scanning device gets close enough to your bag or wallet to scan your card number. This type of fraud is enabled by the fact that today's payment cards typically work on Radio Identification Frequency (RFID) technology.

Can cards with chips be skimmed? ›

Chip cards can still be skimmed — or shimmed — at card readers and ATMs. Stay vigilant to keep your chip card safe, understand the safest ways to pay and know the steps to take if you do become a victim of credit card fraud.

Is it better to swipe or tap a credit card? ›

Near Field Communication (NFC) technology, which creates a secure link between the payment device and the terminal, is used by tap-to-pay systems or NFC payment systems. NFC transactions are extremely safe since they encrypt data, in contrast to the magnetic stripe cards used in conventional swiping.

Can skimmers read Google pay? ›

Payment method encryption: Since Google Pay doesn't store your card details on your device, no one can access your info, even if it's unlocked. Learn more about automatic security features.

How to prevent bank card skimming? ›

Consider how you pay

Swiping and inserting aren't the only ways to pay with a card. If you have a contactless credit or debit card, you can simply tap it to the machine instead of inserting it. If you're at a gas station, paying through the app or inside with an attendant might offer more protection.

Do card skimmers need your PIN? ›

Remember, skimmers need your PIN as well as your card number to access the funds and information on your card, so the best way to protect yourself is by not entering your PIN. When you have to enter your PIN, always cover the PIN keypad.

Do skimmers work on Apple Pay? ›

While card skimming only works by swiping data from the magnetic strip on your card, there are other ways card information can be stolen. Apple Pay takes the extra step of encrypting the data so that your actual card information isn't even in your iCloud.

Do skimmers work on cards with chips? ›

Yes, chip cards can be skimmed as well.

How can you protect yourself from card skimmers when you're at a gas pump? ›

If you're using a card at a fuel pump, the FBI recommends you:
  1. Choose a fuel pump closer to the store and in direct view of the attendant. These pumps are less likely to be targets for skimmers.
  2. Run your debit card as a credit card. ...
  3. Consider paying inside with the attendant, not outside at the pump.
May 29, 2024

Do skimmers get your PIN? ›

Skimming occurs when devices illegally installed on or inside ATMs, point-of-sale (POS) terminals, or fuel pumps capture card data and record cardholders' PIN entries, if applicable. Criminals use the data to create fake payment cards and then make unauthorized purchases or steal from victims' accounts.

How do you know if your card has been skimmed? ›

You won't know that your card has been skimmed until you see unusual transactions, which is why it's important to regularly monitor your account and review card statements. You can also set up card alerts to get emails, texts or app notifications for new transactions.

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