Credit Card Fraud Detection: What Is It and How it Works (2024)

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2 min read

22 May 2023

Back in the day, people needed cash or bank balance in accounts to purchase a product or a service. Over the years, credit cards have changed how people pay for products or services. Credit cards let you spend on anything, borrow a limit, and clear the outstanding conveniently. Banks and financial institutions offer varioustypes of credit cardsto cater to different spending habits.

While there are endless benefits to using credit cards, the unfortunate reality is that payment fraud has also been rising significantly. Credit card fraud can happen online (via e-mail or text) or in person. The main aim of scammers is to purchase goods or services with stolen cards or copied details. Apart from this, they can also transfer withdraw or transfer cash.

These cybercriminals and scammers have plenty of ways to deceive cardholders. That is why you must protect yourself from falling into a trap. An important aspect to be able to protect oneself from such acts is to understand the most common types of credit card scams.

Credit card fraud definition

The illegal act of using someone else's credit card to perpetrate fraud on them is known as credit card fraud. For instance, the intent could be to pay for products and services or send payments to a third-party account without the cardholder's consent.

How credit card fraud happens?

When an unauthorised person accesses your information and uses it to make transactions, credit card fraud has taken place. Here are a few methods scammers use to obtain your information:

  • Credit cards that have been misplaced or stolen
  • Credit card skimming, such as at a petrol pump
  • Phishing attempts, such as sending phoney emails or calling about phoney rewards or money transfers
  • Snooping around you at the cash register during checkout
  • Stealing your mail

How Do Fraudsters Get Credit Card Numbers?

Fraudsters obtain credit card numbers through various methods, such as phishing, skimming devices, or data breaches. They may also use malware to steal sensitive information from online transactions, allowing them to make unauthorized purchases or sell the data on the dark web.

Types of credit card fraud

From credit card cloning to identity theft, credit card fraud can take different forms. Most of the time, it is incredibly overwhelming to recognise them at once. So, you must know about the possible scams in some detail to protect yourself from becoming a victim.

Some of the most common types of credit card fraud include -

How to detect credit card fraud

The following are some methods for spotting credit card fraud:

  • To identify fraud as soon as possible, it is important to constantly monitor bank statements and mobile texts.
  • In order to confirm that the transaction has been completed, cardholders should review the bills and invoices they receive.
  • If a person regularly uses credit cards, monitoring credit ratings is crucial.
  • Calls requesting a one-time password (OTP), card details, account information, etc. should not be answered by the cardholder. Never will a bank or credit card business request such information.
  • Before paying for phoney rewards and money transfers, account holders should confirm the details.

How to prevent credit card fraud

Card fraud can be avoided in a number of different ways. These are what they are:

  • Security of login information - People should never write down or expose their login information anywhere that is visible to others.
  • Do not rush when making a payment. It is advisable to proceed slowly and carefully when sending money online.
  • Utilise mobile wallets. Using a mobile wallet is a smart move since it enables the storage of a small amount for quick access. Therefore, even if fraud occurs, the loss is minimal.
  • It is a good idea to use alternative cards or different accounts when making separate payments or sending money online.
  • It is preferable to choose a transfer limit in the account so that it will be blocked if fraudsters attempt to move a sizable sum.
  • Aware of bogus links and messages, cardholders should always exercise caution when clicking on them.
  • Avoid being taken advantage of by tempting offers. Scammers entice victims with tempting deals before demanding payment.
  • Report the loss of the card right away. Cardholders should notify their bank of any credit card fraud, whether it involves a lost card or an online scam that doesn't involve a lost card.

Credit card fraud vs identity theft

Aspect

Credit card fraud

Identity theft

Definition

Unauthorised use of someone's credit card to make purchases or withdraw funds.

Unauthorised use of someone's personal information, such as name, Aadhar number, or financial accounts, to commit various fraudulent activities.

Focus

Primarily targets credit card accounts and transactions.

Involves stealing a person's entire identity, including financial accounts, personal information, and more.

Key target

Credit card information, including card number, expiration date, and CVV.

Personal information, including name, bank accounts, and other sensitive data.

Scope

Limited to fraudulent credit card transactions and charges.

Extends to a wide range of fraudulent activities, such as opening new accounts, applying for loans, and committing crimes in the victim's name.

Consequences

Financial loss to the cardholder, typically limited to the extent of unauthorized charges.

Financial loss, potential damage to credit history, and legal consequences.

Reporting and recovery

Easier to report, and credit card companies often have fraud protection policies in place. Cardholders are generally not liable for fraudulent charges.

More complex to report and recover from since it involves multiple aspects of a person's identity. Victims may need to contact various authorities, agencies, and institutions to resolve issues.

Prevention

Use of secure, unique passwords and monitoring credit card statements for unauthorised charges.

Stronger identity protection measures, including monitoring credit reports and using identity theft protection services.

Legal consequences

Fraudulent card usage may lead to criminal charges against the perpetrator.

Identity theft can lead to criminal charges against the perpetrator and civil lawsuits for damages by the victim.

  • Lost or stolen cards
    One of the most basic credit card frauds happens when your card gets lost or stolen. The thieves can use the card until it is cancelled or has hit the credit limit. Thus, you must cancel or freeze your card as soon as possible by calling the bank. Also, if you decide to stop using a credit card, cancel it, cut it up, and discard it to avoid the risk of fraud.
  • Credit card application fraud
    Application fraud is when someone uses stolen documents to get a credit card under your name. If they are able to achieve this task, they can perform monetary scams. Plus, they can run up a bunch of debt, burdening you with the repayments. This type of fraud will go undetected until you check your credit report or apply for credit. Therefore, you must always shred copies of your IDs and documents before dumping them.
  • Hacking
    It is probably the most common and oldest method of stealing personal information. As technology advances, hackers are developing new ways to hack your devices or bank databases to steal your personal information. Since it is difficult to notice when you are hacked, you must be careful while providing personal details to unknown websites or while clicking on unknown links.
  • Card-not-present (CNP) fraud
    In this type of fraud, the criminals do not need your credit card personally to access it. For instance, if they find your name and credit card number through unethical means, they can use this information to make purchases online. In such cases, you might only be able to notice these charges once your bank statement is sent.
  • Credit card skimming
    Skimming is when a device (called a skimmer) steals your credit card details. Scammers usually attach these skimmers to the credit card reader machines in retail stores, ATMs, gas stations, etc. Swiping your card through the skimmer stores all the data, which can be duplicated on another card. This kind of fraud is also known as credit card cloning. Therefore, you must only swipe your credit card through genuine machines at trusted merchants.
  • Phishing
    This occurs when cyber criminals send e-mails that look similar to legitimate e-mails from your bank or financial organisation. When you click on the unauthorised link, you are routed to a strange website and are fooled into exposing your personal and payment information. The defrauders can then use your credit card info for monetary transactions. So, you must pay attention to all the e-mails and check their authenticity. If you ever receive any such SMS or e-mail, informyour credit card issuer immediately.
  • Account takeover
    After stealing your personal information via any means, the scammers can contact the credit card companies and ask them to change PINs and passwords, pretending to be you. If this happens, they will become in charge of your credit card. You can only detect this fraud when you try to log in to your account online.

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Frequently asked questions

How credit card frauds are done?

Credit card frauds are typically perpetrated through various methods, including card skimming, phishing, data breaches, and social engineering. Card skimming involves thieves attaching small devices to card readers to collect card data. Phishing involves tricking victims into revealing their card information via fake websites or emails. Data breaches occur when hackers gain unauthorised access to a company's databases and steal customer data. These methods enable fraudsters to make unauthorised transactions or create counterfeit cards, causing financial loss to cardholders.

What is credit card fraud in cyber crime?

Credit card fraud in cybercrime refers to the use of technology and the internet to commit fraudulent activities using stolen credit card information. This can include online purchases, data breaches, phishing scams, and more. Cybercriminals exploit vulnerabilities in digital payment systems and leverage stolen card details to conduct unauthorised transactions, often leading to financial losses and potential legal consequences.

Can credit card fraud be traced?

Yes, credit card fraud can be traced and investigated. Financial institutions, law enforcement agencies, and specialised anti-fraud units use various methods to trace the origin of fraudulent transactions. These methods may include tracking IP addresses, reviewing security footage, and analysing transaction records. Successful tracing can lead to identifying and apprehending the perpetrators, as well as potential recovery of funds for victims.

How did fraudsters get my card details?

Fraudsters obtain card details through various means, including card skimming at ATMs or gas pumps, hacking into online databases during data breaches, engaging in phishing schemes where victims unwittingly share their information, and using social engineering tactics to trick individuals into revealing card details over the phone or via email. Additionally, criminals may purchase stolen card information on the dark web. Protecting personal information and staying vigilant against such tactics is essential to prevent card details from falling into the wrong hands.

How are credit card frauds detected?

Credit card frauds are detected through various methods, including transaction monitoring, fraud analytics, machine learning algorithms, real-time alerts for unusual activity, and additional customer verification steps like OTPs or biometric authentication.

What techniques are used to detect credit card frauds?

Techniques to detect credit card frauds include:

  • Sophisticated algorithms for transaction monitoring.
  • Analysis of transaction data using fraud analytics tools.
  • Machine learning models trained on historical data.
  • Real-time alerts for suspicious transactions.
  • Additional customer verification measures to ensure the cardholder's identity.

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Credit Card Fraud Detection: What Is It and How it Works (1)

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Credit Card Fraud Detection: What Is It and How it Works (2024)

FAQs

Credit Card Fraud Detection: What Is It and How it Works? ›

It involves using various techniques and technologies to identify potentially fraudulent transactions in real-time or post-transaction analysis. The goal is to minimize financial losses for both cardholders and card issuers by quickly identifying and stopping unauthorized or suspicious transactions.

How do credit card fraud alerts work? ›

A fraud alert is a notice that is placed on your credit reports that signals to credit card companies and others who may extend credit that you may have been a victim of fraud, including identity theft. Think of it as a “red flag” to potential lenders and creditors.

How do credit card companies know if it's fraud? ›

Real-time scoring: Each transaction receives a risk score based on the issuer's criteria. High scores may automatically block transactions or require your authorization. Social network analysis: Analyzes relationships between cardholders, merchants and devices to detect patterns that may indicate fraud.

What is the best way to detect credit card fraud? ›

Monitor your accounts and statements regularly: Check your credit reports, online account and bank statements for any suspicious activity. Keep an eye out for charges you don't recognise or unusual spending patterns.

How accurate is credit card fraud detection? ›

Logistic regression accuracy is 91.2%, Naïve bayes accuracy is 85.4% and K- nearest neighbor is last with an accuracy of 66.9% (Itoo et al., 2020).

What happens when you have a fraud alert? ›

Fraud alerts

A fraud alert requires creditors, who check your credit report, to take steps to verify your identity before they open a new account, issue an additional card, or increase the credit limit on an existing account based on a consumer's request.

What happens when credit card fraud is reported? ›

A credit card fraud investigation could take up to 90 days, during which time the credit card issuer may contact the merchant that charged your card to get more details about the transaction. The card issuer may request copies of a police report or receipts to compare signatures if they're available.

Do most credit card frauds get caught? ›

Some estimates say less than 1% of credit card fraud is actually caught, while others say it could be higher but is impossible to know.

What is evidence of credit card fraud? ›

Spotting credit card fraud

One of the best ways to spot credit card fraud is by reviewing your credit card transactions on a regular basis. Some people check their online account or app every day or every week, looking over recent charges and confirming their accuracy.

Who pays when a credit card is used fraudulently? ›

The bank that issues the credit card will cover most credit card fraud issues, but sometimes the bank rules that it is merchant credit card fraud, making the merchant responsible. Small business owners using outdated swipe payment terminals may have to make up for the difference.

What is the red flag for credit card fraud? ›

In-person signs of credit card fraud

References the signature on the back of the credit card to sign the receipt. Keeps coming back in on the same day to make separate purchases. Just grabs seemingly random items and throws them in the cart. Tries to keep your attention as you check the signature.

Do police really investigate credit card theft? ›

Credit card fraud is illegal, but whether the police investigate cases depends on a number of factors. Police may investigate the theft of a credit card if it was among other stolen items, as in a home robbery or car theft. Police typically do not investigate a single stolen credit card.

Which technique is used for credit card fraud detection? ›

Techniques to detect credit card frauds include: Sophisticated algorithms for transaction monitoring. Analysis of transaction data using fraud analytics tools. Machine learning models trained on historical data.

What credit card fraud is most common? ›

Card-not-present fraud is the umbrella term for all types of credit card fraud where fraudsters make a purchase without having the physical credit card in their possession. It's easily the most common type of credit card fraud, because it's a very safe line of attack for the fraudster.

How to spot card fraud? ›

Sometimes it's possible to spot if you've fallen foul of fraudsters who've stolen your credit card details. Signs that might suggest this include the following: Your card is rejected when you try to use it to make a payment. Your credit card or bank statements show purchases that you don't remember making.

How do banks detect card fraud? ›

Pattern recognition. Banks analyze historical transaction data to identify unusual patterns or anomalies that might indicate fraudulent activities. For instance, if a customer suddenly starts making large transactions from a device they've never used before, it could trigger an alert.

Can I still open a credit card with a fraud alert? ›

You will still be able to apply for credit with a fraud alert. A fraud alert does not prevent you from applying for or obtaining credit. Anyone who views your credit report will just be notified to take extra precautions to verify it's really you applying for credit.

How long is a credit fraud alert? ›

When you place a fraud alert on your credit report, you can get a free copy of your credit report from each of the three credit bureaus. Duration: A fraud alert lasts one year. After a year, you can renew it.

What is the credit card fraud detection problem? ›

Main challenges involved in credit card fraud detection are:

Data availability as the data is mostly private. Misclassified Data can be another major issue, as not every fraudulent transaction is caught and reported. Adaptive techniques used against the model by the scammers.

Is there a downside to freezing your credit? ›

A freeze can give you a false sense of security — you may still be susceptible to credit fraud or other fraud involving your Social Security number. A credit freeze won't affect your current accounts, but if a thief steals the information on an existing account, your credit may be used without your permission.

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