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No. Don’t put credit card numbers or verification codes in cookies, whether you create them in a browser or with cURL. Cookies and cURL’s cookie jar are for handling HTTP cookies, not storing payment data securely. Keep payment data in a protected server-side payment environment and send the client only a random, opaque session identifier.
Why a cookie is the wrong place for payment data
A cookie is sent with matching HTTP requests and may persist on a user’s device or in a cookie file. Putting a card number there exposes it to the client-side environment and to any system or person able to access the cookie or its stored copy. A cookie is not a vault.
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OWASP recommends that a session ID be meaningless and contain no sensitive information; the associated application state belongs on the server. For a payment flow, that means the cookie should identify a server-side session, not carry a card number, CVV, or other payment details.
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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteWhat PCI DSS says about card numbers and CVV
Distinguish the primary account number (PAN) from sensitive authentication data such as the card verification code (CVV, CVC, or CID). PCI Security Standards Council (PCI SSC) states that a verification code cannot be retained after the specific transaction is authorized, even if it is encrypted. Its FAQ 1280 puts it plainly: “No. It is not permitted to retain card verification codes once the specific purchase or transaction for which it was collected has been authorized.” PCI SSC FAQ 1280
#1 Best Overall
- SLIM BODY WITH LARGE CAPACITY：This mens wallet measures 4.3 x 3.2 x 0.6 inches and can hold 14 cards and 10+ bills. The slim design makes it perfect for fitting into all kinds of pockets, offering great portability.
- QUICK CARD SLOTS & CASH SLOT：On the front of this minimalist wallet for men, there are 2 quick-access card slots for easy retrieval while traveling or shopping. The cash slot allows you to quickly access and store cash without having to fold bills multiple times.
- DOUBLE ID WINDOWS：This card wallet for men specifically features 2 clear ID windows for holding ID cards and driver's licenses, enabling fast and convenient access to your information.
- FID BLOCKING：This rfid wallet is lined with a special RFID-blocking material that shields against 13.56 MHz and higher frequency signals. This prevents unauthorized scanning and data theft from your chips, offering comprehensive protection for your identity and financial information.
- PERFECT GIFT IDEA FOR MEN：Crafted with high-quality materials, this leather wallet for men combines practicality for mens everyday needs, making it an ideal gift for birthdays, anniversaries, Christmas, Valentine’s Day, Father’s Day, or other special occasions.
The prohibition also applies to card-on-file and recurring transactions. Customer consent does not make retaining a verification code permissible. The cited guidance describes a narrow exception for issuers or companies supporting issuing services with a legitimate issuing business need; it is not a merchant exception for saving a code for later charges. PCI SSC says the data must be completely removed from the entity’s systems. Where a removal process could still allow retrieval, it needs assessment to confirm the data is no longer stored.
FAQ 1533 says the post-authorization restriction applies even when no PAN is present in the environment. PCI SSC FAQ 1533
Rank #2
- This Credit Card Holder is made of aluminum shells, ABS plastic frame and clasp closure, RFID-blocking will protect your card data from RFID scanners and readers.
- The Size is 4.33 x 2.95 x 0.73 inches, Slim and small exterior design, are fit in your front pocket,suitable for travel and business carrying.
- Latches Safely and Securely when not in use. Rounded corner wouldn't damage on your clothes. With 7 accordion Slots, Capacity for up to more than 9 credit cards or more than 21 business cards.
- There are various patterns to choose from on the aluminum shell, including flowers, animals, and landscapes, to match your versatile style.
- This is an ideal gift that can express your thoughtfulness and kindness. Suitable for any day you want to express love on, such as Valentine's Day, birthdays, Mother's Day, etc.
Do not overgeneralize that rule into a claim that PCI DSS categorically forbids storing every PAN in every circumstance. PCI SSC treats general cardholder-data retention separately: FAQ 1318 says PCI DSS does not set a universal maximum or minimum retention period. Entities need a retention and disposal policy that limits stored data to legal, regulatory, or business need. PCI SSC FAQ 1318 Assessment requirements are set by the organizations managing a compliance program, such as acquirers, payment brands, or other entities, so the applicable assessment obligations depend on the environment.
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What cURL’s cookie options actually do
cURL and libcurl can send, receive, and persist HTTP cookies. They do not add payment-data encryption, tokenization, or vaulting.
Rank #3
- Special Design: Multi-color optional and wear-proof classic business card holder looking.
- Plenty of Space: 16 card slots only measuring 4.1" x 3.0" x 1.1", including 13 credit card slots, 2 cash slots
- Protect Information Leakage: Prevents your vital information/cards from unnoticed scan with 2 outer layers RFID blocking materials.
- Extra Key Chain & Portable: Extra corns with key chain for your keys or lanyard. Portable use for shopping, traveling, etc.
- Great Gift: Practical compact wallet is the perfect gift. Give a thoughtful surprise to Men/Women on birthdays, holidays, celebrations, or any special occasion (e.g. Valentine's Day, Christmas, etc.).
CURLOPT_COOKIE: adds one or more cookies to outgoing requests. The supplied value is not syntax-checked, and this option is separate from libcurl’s internal cookie storage.- Cookie engine and jar: cookie-file and cookie-jar options enable cookie handling. The command-line
-b/--cookieoption can read a cookie file or supply a cookie string;-c/--cookie-jarwrites cookies to a jar in Netscape-format text.
A cookie jar is therefore a text file containing cookie values, not an encrypted card-data store. The libcurl CURLOPT_COOKIEJAR documentation warns that writing can fail without an error being reported through the normal return path. It also notes that default file permissions may not be restrictive enough; operators may need to set a restrictive umask, and a directory writable by an attacker creates additional risk. Treat a cookie file as a credential and protect it accordingly—but file permissions do not make retaining a CVV after authorization acceptable.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.A safer design for one-time and recurring payments
- Keep card data out of cookies. Do not place a PAN or verification code in a cookie string, a cookie jar, or a manually constructed
Cookieheader. - Use a payment environment designed to handle payment data. For accepting a payment or keeping a card on file, use the payment service’s supported workflow and tokenization where appropriate. Protect the server-side repository and restrict access to it.
- Put only a random, opaque session identifier in the cookie. Keep the related application state server-side. OWASP recommends appropriate
Secure,HttpOnly, andSameSiteprotections for session cookies. These attributes help protect cookie transmission and access; they do not make it acceptable to put card data in the cookie. - Never retain a verification code after authorization. That remains true for future recurring charges and even if the code is encrypted. Follow the payment service’s supported process for subsequent payments rather than keeping the code yourself.
Browser cookie attributes and cURL cookie-jar file protections address different risks: the former control how a browser sends or exposes a cookie, while the latter concern a local text file. Neither turns a cookie into an appropriate payment-data store.
Quick Recap
Best Value
- RFID Blocking Technology: This credit card holder is made of aluminum shells and ABS plastic, designed with RFID-blocking technology to help protect your credit, ID, debit, and driver's license cards from unauthorized scanning
- Slim Compact: Slim and compact design measures 4.3 x 3 x 0.86 inches, ideal for front pockets or purses
- Card Organizer: With 7 accordion-style slots, this wallet can hold up to 10 standard credit cards or over 20 business cards
- Artistic Expression: Features a variety of artistic designs on the aluminum shell, inspired by famous paintings, flowers, and animals, to complement your personal style
- Thoughtful Gift Idea: Makes a thoughtful gift for any occasion, combining functionality and style
Rank #4
- This credit card holder is made of aluminum shells, ABS plastic frame and clasp closure, RFID-blocking will protect your card data from RFID scanners and readers.
- The size is 4.33 x 2.95 x 0.75 inches, Slim and small exterior design, are fit in your front pocket,suitable for travel and business carrying.
- Latches safely and securely when not in use. Rounded corner wouldn't damage on your clothes. With 7 accordion Slots, Capacity for up to more than 10 credit cards or more than 20 business cards.
- There are various patterns to choose from on the aluminum shell, including flowers, animals, and landscapes, to match your versatile style.
- This is an ideal gift that can express your thoughtfulness and kindness. Suitable for any day you want to express love on, such as Valentine's Day, birthdays, Mother's Day, etc.
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