Guide
How to send a credit card number safely
Sharing card details with family or for a payment? Do it without the number staying in a message thread.
Why you should never text or email a card number
Sometimes you genuinely need to share card details — letting a family member book a trip, paying over the phone, or giving a partner the household card. But putting the number in a normal message is a real risk:
- The full number stays visible forever. A card number in a text or email can be read by anyone who later sees that device or account.
- Screenshots and backups multiply it. Messages get backed up to the cloud and synced across phones and laptops — each one a place your card number now lives.
- It's a prime target. Card numbers with the expiry and security code are exactly what fraudsters look for in a hacked inbox or stolen phone.
Unlike a bank account number, a card number plus expiry and CVV can often be used to spend money directly — so it deserves extra care.
How to send card details safely, step by step
- Open SecretDrop.
- Paste the card details — you can put the number, expiry, and security code together.
- Create the one-time link.
- Share the link with the person. Because the link isn't the card number, it's safe to send by text or chat.
- They open it once, use the details, and it self-destructs. No copy is left behind.
Best practices
- Split the info if you can. For extra safety, send the security code in a separate message or by phone, apart from the card number.
- Use a virtual or single-use card for online purchases where your bank offers one.
- Tell them to use it promptly — the link can also expire on a timer, so it won't wait around.
- Check your statement afterward and report anything you don't recognize immediately.
- Never share your card PIN for an online or card-not-present payment — it's not needed and legitimate requests won't ask for it.
Frequently asked questions
Is it safe to text a credit card number?
No. The number stays in the message history and in cloud backups, where it can be read by anyone who accesses the device later. A self-destructing link is far safer.
What's the safest way to give someone my card details?
Share them through a burn-after-read link that shows the details once and deletes them, rather than leaving them in a saved message or email.
Can I send a credit card number by email?
You can, but it's risky — the email lives in both inboxes and any backups indefinitely. A one-time link avoids that lasting record.
What should I do if I sent my card number by text?
Delete the message on both devices if possible, keep an eye on your statement, and contact your card issuer if you're worried — they can reissue the card.