WHERE IS THE SECURITY CODE ON AN AMERICAN EXPRESS CARD

Last updated: June 19, 2025, 20:38 | Written by: Anthony Di Iorio

Ever found yourself staring blankly at your American Express card, wondering where that elusive security code is hiding?You're not alone! But AmEx says, You should write down the Card number, along with the Customer Service Number, the 3 digit security code on the back of the Card ( CSC ), and 4 digit security code on the front of the Card (referred to also as the Card Identification Number or CID ) and keep these in a safe place. So the number on the front is the CID?Unlike Visa and Mastercard, which typically display the security code on the back, American Express takes a slightly different approach.This difference often leads to confusion, especially when making online purchases or phone payments.But fear not!This comprehensive guide will demystify the location and purpose of the American Express security code, also known as the Card Identification Number (CID). The CVV number on an AMEX is the four digits above the last few digits on the front of the card (see below) and is what you need to enter when processing a payment. CVV is an anti-fraud security feature to help verify that you are in possession of your credit card.We'll delve into the nuances of Amex security features, explain the difference between CVV and CID, and provide practical tips on how to protect your card information.Understanding these codes is crucial for safeguarding yourself against fraud and ensuring smooth transactions.So, whether you're a seasoned Amex cardholder or a newcomer, this article will equip you with the knowledge you need to confidently navigate the world of American Express security.

Understanding American Express Security Codes: CID and CSC

American Express employs a layered approach to security, utilizing two primary codes: the Card Identification Number (CID) and the Card Security Code (CSC). CSC or card security code CID or card identification number CVC or CVC2, or card verification code CVV2, or card verification value code, 2nd generation . This three- or four-digit code tells the merchant that you are in possession of the card. The code also protects you from credit card fraud.While both serve the purpose of verifying your identity and preventing fraud, they are located in different places on the card and serve slightly different functions. Find out how American Express protects you while shopping online through our SafeKey authentication tool, which uses a security code to help avoid Card fraud.It's important to understand the role of each code to ensure you're using them correctly and protecting your financial information.

The Card Identification Number (CID)

The CID, or Card Identification Number, is a four-digit code printed on the front of your American Express card. American Express CIDs are located on the front of the card. But for other types of credit card issuers, typically you will find the security code on the back of the credit card where you find other details like the expiration date.You'll find it located just above and to the right of your main card number.It’s typically printed in a flat, non-raised font, making it distinct from the embossed card number.This four-digit code acts as a primary security measure for verifying that you are in physical possession of the card when making purchases online or over the phone.

Think of it this way: when you're physically swiping your card at a store, the magnetic stripe provides verification.However, when you're buying something online or over the phone, the CID acts as your digital ""swipe,"" confirming that you have the card in your hand. Amex has 2 levels of security: they have the normal CVV (Card Verification Value) and the 3 digits are a CID . CVV is a calculated highly secure 4 digit code based on your card number that is not contained in the card magnetic strip, which is the reason why it's printed on the card itself.Because the CID is not encoded on the magnetic stripe, even if someone steals your card number through skimming, they won't have the CID, making it much harder for them to make unauthorized purchases.

The Card Security Code (CSC)

American Express also uses a Card Security Code (CSC), which is the three-digit number located on the back of the card, typically in the signature area.This code serves as an additional layer of security. The card security code (CSC) is usually a 3 - or 4 - digit number, which is not part of the credit card number. The CSC is typically printed on the back of a credit card (usually in the signature field). On some cards, all or part of the card number appears before the CSC, for example, 1234 567.While the CID is prominently displayed on the front, the CSC is hidden on the back, making it less visible and more difficult for fraudsters to obtain.Think of the CSC as a secondary PIN number used to verify that the card is legitimately yours.

For added security, American Express SafeKey uses a security code to help avoid card fraud when you shop online. Learn the difference between CVV and CID on American Express cards and where to find them on the front and back of the card. The CVV is the four-digit number above the card account number on the front and is used for online payments.This is part of Amex's commitment to providing online protection for all card members.Also, keep in mind that American Express ensures that you won't be liable for any fraudulent charges made on your account.

CVV, CVC, CID, and CSC: Decoding the Acronyms

The world of credit card security codes is filled with acronyms that can be confusing. See full list on gobankingrates.comCVV, CVC, CID, and CSC are all variations of the same concept: a security code designed to protect your credit card from fraud.Here's a breakdown of each term:

CVV (Card Verification Value): This is the general term used to describe a credit card security code.
CVC (Card Verification Code): Similar to CVV, this term is primarily used by Mastercard.
CID (Card Identification Number): This term is used by American Express to specifically refer to the four-digit security code on the front of the card.
CSC (Card Security Code): This code is found on the back of American Express Gift Cards, acting as a secondary PIN.

While the terminology may differ depending on the card issuer, the underlying principle remains the same: these codes are designed to verify that you are in possession of the card and authorized to use it.

Why is the Security Code Important?

The security code on your American Express card, whether it's the CID or CSC, is a crucial safeguard against fraud and theft. The American Express, Member FDIC, security code is the four-digit number located on the front of the card, just above and to the right of the card number. This security code is not the card's PIN. This security code is also referred to as a CVV or a CID.It's designed to protect you in several ways:

Online and Phone Purchases: The security code is primarily used for online and phone transactions, where the merchant cannot physically see your card.It verifies that you have the card in your possession.
Prevention of Card-Not-Present Fraud: Even if someone manages to steal your card number through skimming or other means, they typically won't have access to the security code. Gift Card number; Four digit Card Identification Code (CID) on the front of the Card; Three digit Card Security Code (CSC) on the back of the Card; Customer service phone number; You can also call us at the phone number on the back of your Gift Card to register your name and Gift Card details in the event it s lost or stolen.This makes it significantly harder for them to make unauthorized purchases.
Protection Against Database Hacks: Because the security code is not stored on the magnetic stripe or typically held by merchants after a transaction, it's more difficult for hackers to obtain. Change Security Code . To proceed, click on the button Change Security Code. After this, a one-time passcode will be sent to your phone or email for verification before you can change your Security Code. Create your new Security Code, following the rules below: Must contain 6-9 characters; No spaces; No Special CharactersThis adds an extra layer of protection in the event of a data breach.

In short, the security code acts as a critical verification tool, helping to ensure that only authorized users can make purchases with your American Express card.

Protecting Your American Express Security Code

Knowing where to find your security code is only half the battle.It's equally important to take steps to protect it from unauthorized access. Some credit cards may list the credit card number on the back of the card, as well, but the security code is separate. American Express cards list the security code on the front of the credit card, usually to the left of the card and always above the main credit card or account number. Recommended: Guide to Checking Your Credit Card Approval OddsHere are some practical tips to help you keep your security code safe:

Never Share Your Security Code: This may seem obvious, but never share your security code with anyone over the phone, email, or any other unsecure channel. American Express provides online protection for all our Cardmembers. As part of our ongoing commitment to protecting your account's security, we launched American Express SafeKey to allow you to shop in an even more secure online environment. Please be assured that you are not liable for fraudulent charges on your account.Legitimate merchants will only ask for the security code during the transaction process, not beforehand.
Be Wary of Phishing Scams: Be cautious of phishing emails or websites that ask for your credit card information, including the security code. The Credit Card Identification Code, or Card Code, is a 3 or 4 digit Security code that is printed on the back of credit cards in reverse italics in the card signature panel (or on the front for American Express cards).Always verify the legitimacy of the source before providing any personal or financial details.
Cover Your Code During Transactions: When making purchases in person, always cover the keypad when entering your PIN, and be mindful of your surroundings to prevent anyone from visually capturing your card details.
Secure Online Shopping: Only shop on secure websites that use encryption (look for ""https"" in the website address). A CVV is the three- or four-digit security code that commonly appears on the back of your card near your signature, though some card issuers print it on the front. CVV numbers are typically shown in printed text, even if the credit card number itself is written in raised numerals.This helps protect your data from being intercepted during transmission.
Monitor Your Account Regularly: Regularly review your American Express statements for any unauthorized transactions.Report any suspicious activity to American Express immediately.
Don't Store Your Security Code Online: Never save your security code on websites or in your browser's autofill settings. The American Express security code is a 4-digit number on the front of the card located above the card number, on the right side. The security code is important for making purchases online or over the phone, when the cardholder can t swipe or insert their Amex card in person.This could make it vulnerable to hackers.
Be Careful with Physical Storage: While American Express recommends writing down your card number, customer service number, the 3-digit security code on the back of the Card (CSC), and the 4-digit security code on the front of the Card (CID), and keeping them in a safe place, carefully consider whether or not you need to write down the codes at all. This 3- or 4-digit code that can protect you from credit card database hacks.If you do, store that information in a secure location, separate from your card.

By following these simple precautions, you can significantly reduce the risk of your security code being compromised and protect yourself from fraud.

What to Do If Your American Express Card is Lost or Stolen

If your American Express card is lost or stolen, it's crucial to act quickly to minimize the risk of unauthorized use.Here's a step-by-step guide on what to do:

Report the Loss or Theft Immediately: Contact American Express as soon as you realize your card is missing.You can find their customer service number on their website or in the American Express app.
Cancel Your Card: American Express will cancel your lost or stolen card and issue you a new one with a new card number and security code.
Review Your Recent Transactions: Carefully review your recent transactions for any unauthorized activity.Report any suspicious charges to American Express immediately.
File a Police Report (Optional): If you suspect your card was stolen, you may want to file a police report.This can be helpful if you need to dispute fraudulent charges or for insurance purposes.
Monitor Your Credit Report: Keep an eye on your credit report for any signs of identity theft. The 3 digit number on the back is a Card Security Code which is another level of fraud prevention Amex employs, it's a unique identifier for the card. Different from the CVV. Reply replyYou can obtain a free copy of your credit report from each of the three major credit bureaus (Equifax, Experian, and TransUnion) once a year.

By taking these steps promptly, you can limit your liability for any fraudulent charges and protect your credit rating.

American Express SafeKey: Enhanced Online Security

American Express offers an additional layer of security for online purchases through its SafeKey program. American Express have its own security measures and have both CVV (Card Verification Value) and CID (Card Identification Data) numbers on its cards which are often confused. The CVV number on a Visa or Mastercard can be found on the back of the card and are the three digits (see below), on an AMEX this would be a CID number and if you use thisSafeKey helps protect your account by verifying your identity during online transactions.

Here's how it works:

Activation: In many cases, SafeKey is automatically enabled for your American Express card.
Verification: When you make an online purchase at a participating merchant, SafeKey may prompt you to verify your identity.This could involve entering a one-time passcode sent to your registered phone number or email address.
Enhanced Protection: By verifying your identity, SafeKey helps prevent unauthorized purchases and protects your account from fraud.

SafeKey provides an extra layer of security, giving you greater peace of mind when shopping online.

Changing Your American Express Security Code (If Available)

While you can't directly change the CID or CSC printed on your American Express card, some programs or services might offer the option to create a separate security code for specific purposes, such as online account access. While CVV is the general term, each issuer uses slightly different terminology. For example, you might also see terms like CVV2 for Visa, CVC2 for MasterCard, and CID or card identification number for American Express. The algorithm for how card issuers assign certain CVV codes is not known, but this is a good thing!If available, the process typically involves the following:

Access Your Account Settings: Log in to your American Express account online or through the mobile app.
Navigate to Security Settings: Look for security settings or profile settings within your account.
Change Security Code: If the option is available, you'll find a section to change your security code.
Verification: You'll likely need to verify your identity through a one-time passcode sent to your phone or email.
Create a New Code: Follow the on-screen instructions to create a new security code. CID: card identification (Discover and American Express) CSC: card security code (American Express) The credit card security code is a safeguard against potential fraud and theft. If someone were able to get a hold of your credit card number via skimming or other means, they'd be out of luck, as most websites require a security code to make aThis might involve specific character requirements.

Note that this changed security code will likely only apply to the specific service or program and won't affect the CID or CSC printed on your physical card.

Frequently Asked Questions About American Express Security Codes

Here are some frequently asked questions about American Express security codes:

Q: Where do I find the security code on my American Express card?

A: The security code on an American Express card consists of two different numbers.The four-digit Card Identification Number (CID) is located on the front of the card, above and to the right of the card number.The three-digit Card Security Code (CSC) is located on the back of American Express Gift Cards.

Q: What is the difference between CVV and CID?

A: CVV (Card Verification Value) is the general term for a credit card security code.CID (Card Identification Number) is the specific term used by American Express to refer to the four-digit security code on the front of their cards.

Q: Can I use the same security code for all my American Express cards?

A: No, each American Express card has a unique security code.This is to ensure that each card is protected from fraud.

Q: Is it safe to store my security code online?

A: No, it is generally not safe to store your security code online.This could make it vulnerable to hackers.It's best to memorize your security code or keep it in a secure location offline.

Q: What should I do if I suspect my security code has been compromised?

A: If you suspect your security code has been compromised, contact American Express immediately to report the issue.They will be able to cancel your card and issue you a new one with a new security code.

Conclusion: Protecting Your American Express Account

Understanding the location and purpose of the security code on your American Express card is crucial for protecting yourself from fraud.Remember that the four-digit CID is located on the front of the card, while the three-digit CSC is located on the back of American Express Gift Cards.By following the tips outlined in this guide, you can help keep your security code safe and secure your American Express account.Always be vigilant about protecting your card information, monitor your account regularly, and report any suspicious activity to American Express immediately.Taking these precautions will provide peace of mind when using your American Express card for purchases, both online and in person.Remember, the security code is your first line of defense against unauthorized use, so treat it with the utmost care.