How to spot credit card skimmers and avoid fraud (2024)

Every time you swipe or insert your credit card, you risk encountering a credit card skimmer — a sneaky device that can steal your card's information without you even realizing it.

Here's how to spot a credit card skimmer and the measures you can take to safeguard your information from theft.

What is a credit card skimmer?

A credit card skimmer is a device that steals credit card information. They’re often found in locations that aren’t heavily monitored where unsuspecting users swipe often — think self-pay gas station pumps, ATMs, or self-checkouts.

Thieves will install the skimmer device while acting as an ordinary customer, leave it for victims, then come back to retrieve the device along with the captured user information.

How do credit card skimmers work?

A credit card skimmer works by illegally capturing and storing the information on a credit card's magnetic stripe. Here's a breakdown of its operation:

  • Installation: Culprits discreetly attach the skimmer device over a legitimate card reader slot, like those found on ATMs, gas pumps, or other point-of-sale terminals. Some advanced skimmers can also be installed inside the machine, making them even harder to detect.

  • Data capture: When an unsuspecting cardholder swipes or inserts their card into the compromised slot, the skimmer reads and stores the card's magnetic stripe data. This data includes the cardholder's name, card number, expiration date, and the CVV (a series of service codes and encoded information).

  • Retrieval: The thief later returns to retrieve the skimmer and download the captured card data. Some sophisticated skimmers can transmit the data wirelessly, removing the need for retrieval.

What happens when your card is skimmed?

When your credit or debit card is skimmed, the person who installed the skimmer can access your credit card data. Here’s what that means:

How can I avoid being a skimmer victim?

To sidestep the snares of credit card skimmers, be observant and take specific precautionary actions when using card terminals or ATMs. Following this short list of essential steps can help you increase your defense against these intrusive devices.

Inspect for signs of skimming devices

Start by inspecting the card slot. Skimming devices often present as unusual overlays, are mismatched in color, or have protruding parts. Be wary of any of these anomalies — if your “spidey sense” is going off, trust your gut.

How to spot credit card skimmers and avoid fraud (1)

Check for a security seal

A tamper-evident security seal is often placed across card terminals, especially on gas pumps. If this seal appears broken or tampered with, avoid the machine. A compromised seal can be an immediate red flag, indicating a skimmer's presence.

Pay at the cash register

Whenever possible, make payments directly at the register to minimize risk. Stand-alone terminals, especially those outside, are more vulnerable to tampering. Paying directly with a store clerk and using terminals within a store often provides an added layer of security against skimming threats.

What to do if you spot a credit card skimmer

  • Do not use the machine and don’t touch the skimmer: First and foremost, if you suspect a skimmer is attached to a machine, such as an ATM or gas pump, do not insert your card, and do not attempt to remove the skimmer.

  • Inform the appropriate authorities: Notify the local police about the suspected skimmer. They can investigate further and ensure the device is removed properly.

  • Notify the business: If the skimmer is on a machine at a business location, like a gas station or retail store, inform the management or staff immediately. They can take precautions and check other machines.

  • Check surrounding machines: Skimmers can often be installed on more than one machine in proximity. If you find one on an ATM or gas pump, check other nearby machines.

  • Monitor your accounts: If you used the machine before noticing the skimmer, monitor your bank and credit card statements closely for any unauthorized transactions.

  • Protect your PIN: If you're at an ATM, always cover your hand while entering your PIN to prevent any hidden cameras from capturing your information.

What to do if your card is skimmed

Taking prompt and decisive action is paramount upon suspecting or confirming that your credit card has been skimmed. There are a few crucial measures to follow that will help secure your financial standing and aid in the combat against these fraudulent activities.

Alert your credit card issuer and dispute charges

First and foremost, contact your credit card issuer without delay. Inform them of the suspected skimming and review recent transactions together. Swift communication ensures any unauthorized charges are flagged, disputed, and potentially reversed, safeguarding your financial assets.

Place a credit freeze on your report

By placing a freeze on your credit report, you make it harder for identity thieves to open new accounts in your name. While this doesn't affect your credit score, it offers an extra layer of protection. This proactive measure thwarts unauthorized credit inquiries and account openings, preserving your credit reputation.

File a report with the FTC

The Federal Trade Commission (FTC) plays a vital role in tracking and combating fraudulent activities. By filing a report, you contribute to broader efforts to clamp down on skimming and related crimes. Your report not only aids your individual case but also strengthens collective data and strategies against fraudsters.

10 tips for avoiding physical or online credit card theft

  1. Use EMV chip cards: Chip cards are more secure than traditional magnetic stripe cards. If you don't have one, request an upgrade from your bank.

  2. Regularly update passwords: Change your online banking and shopping account passwords periodically. Use strong, unique combinations of letters, numbers, and symbols.

  3. Enable two-factor authentication: Use two-factor authentication for added security on online accounts whenever available.

  4. Be wary of public Wi-Fi: Avoid accessing sensitive information or conducting transactions over unsecured public Wi-Fi networks.

  5. Monitor your statements: Review your credit card and bank statements regularly to catch any unauthorized transactions early.

  6. Keep cards close: When out and about, ensure your credit card doesn't leave your sight during transactions, and store it securely afterward.

  7. Shred old statements: Don't throw out credit card statements or offers directly. Shred them to prevent potential thieves from accessing your data.

  8. Install security software: Ensure your computer and mobile devices have updated security software to protect against malware and phishing attacks.

  9. Be skeptical of unknown emails: Don't click on links or download attachments from unknown or suspicious email sources. They might be phishing attempts.

  10. Limit shared information on social media: Be cautious about the personal information you share on social platforms, as thieves can use this data for identity theft or other fraudulent activities.

FAQs

Where are credit card skimmers found?

Credit card skimmers are most commonly found on ATMs, gas station pumps, and point-of-sale terminals. Knowing where a skimmer may be located is the first step in safeguarding your financial data.

What does a skimmer look like?

At first glance, a skimmer may blend seamlessly with the machine's original components. They appear as additional attachments or overlays on the card insertion slot. More specifically, they might be characterized by a thicker or unusual card reader, mismatched colors, or loose parts that don't align with the overall design.

Can a skimmer be detected?

Yes, you can spot credit card skimmers, but it requires vigilance. Often, the anomalies in a machine's appearance or functionality can hint at the presence of a skimmer. Regular device inspection and monitoring your account for suspicious activity are crucial steps in identifying and avoiding these malicious devices.

How to spot credit card skimmers and avoid fraud (2024)

FAQs

How to spot credit card skimmers and avoid fraud? ›

If the card reader seems loose, crooked, or damaged, if the graphics aren't aligned, or if part of the machine is a different color, don't insert or swipe your card. If there is another machine nearby (such as two ATM machines next to each other) compare them to see if there are obvious differences.

What do skimmer devices look like? ›

What does a credit card skimmer look like? Skimmers can take the form of fake keypads on a credit card terminal or an accessory disguised as a credit-card slot. Some thieves use a camera that watches your activity as you interact with the point-of-sale terminal.

Does tapping your card protect you from skimmers? ›

Does "tap to pay" prevent your card from being skimmed? Payment terminals with contactless technology that let you “tap to pay” prevent your card from being skimmed with a traditional card skimming device. However, scammers never seem to run out of new ways to steal your card data, so you should always stay vigilant.

Can skimmers read CVV? ›

Data capture: When an unsuspecting cardholder swipes or inserts their card into the compromised slot, the skimmer reads and stores the card's magnetic stripe data. This data includes the cardholder's name, card number, expiration date, and the CVV (a series of service codes and encoded information).

Can skimmers read a chip? ›

Chip cards are less vulnerable to skimming than magnetic stripe cards, but they aren't completely safe. Crooks can still capture your card information from a chip card using a technique called shimming. Shimming allows criminals to create fake credit cards with your card information.

Can someone scan your credit card 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.

What do overlay skimmers look like? ›

Overlay skimmers.

They are devices that are placed over the top of an actual card reader found on ATMs or gas pumps. An overlay skimming device usually looks like part of the original device and can be difficult to detect.

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.

Where is the spot for a card skimmer in brief? ›

It is possible to spot a card skimmer by conducting a quick visual and physical inspection of a card reader before inserting a credit card. Look for odd card reader attributes or broken security tapes.

How common is card skimming? ›

By the Numbers: Skimming Statistics

FICO reported a 77% increase in the number of cards impacted in the first half of 2023, totaling 120,000 cards, a staggering 77% increase from 20221. Here are some other numbers of concern: 3,000 unique financial institutions that were affected by a skimming attack in 20222.

Is there an app to detect skimmers? ›

ATM Skimmer Detector - Protect Your Debit/Credit Card Information. ATM Skimmer Detector is a free Android application developed by JDebug that helps users detect skimmers installed in ATMs and fuel pumps to steal credit or debit card information.

Do skimmers work if you tap? ›

The nature of contactless Tap to Pay cards sidesteps these threats. Part of what makes skimmers and shimmers successful is the fact that they're hidden. Since your card is never inserted or swiped, these tools are basically useless when it comes to stealing your info.

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