
Card number exposed
I gave a scammer my debit or credit card number. What now?
6 min read
The short answer
Call the number on the back of the card right now and ask them to cancel it and send a new one. With a credit card, you usually owe nothing for charges you didn't make. With a debit card, how much you could lose depends on how fast you report it, so call today.
Do this in the next 10 minutes
Call the card company
Use the number on the back of the card or the bank's official app. Say: "I gave my card number to a scammer. Please cancel this card and issue a new number."
Lock the card in the app while you wait
Many banks let you freeze a card with one tap. It's a good stopgap, but still call.
Ask about charges already pending
Read through recent charges with the agent. Small charges you don't recognize count too.
Get a case number
Write down the name, time, and number. You'll need them if you have to dispute later.
Credit card vs. debit card: how much could you owe?
These limits come from federal law, as explained by the FTC. They apply to charges you didn't make or approve.
- Credit card, only the number was stolen (you still have the card): You aren't responsible for unauthorized charges.
- Credit card, card lost or stolen: At most $50, and $0 if you report it before it's used.
- Debit card, only the number was stolen: You aren't responsible for unauthorized charges if you report them within 60 days after your statement is sent.
- Debit card lost or stolen, reported within 2 business days: At most $50.
- Debit card lost or stolen, reported after 2 business days but within 60 days of the statement: Up to $500.
- Debit, reported more than 60 days after the statement: You could lose all the money taken.
Debit card charges come straight out of your checking account. Even when you're protected, you may be short on cash while the bank investigates. That's why speed matters most with debit.
Free recovery checklist
Get the step-by-step plan in your inbox
The printable C.A.L.M. checklist and who to call. No sales pitch. Or open the checklist now (PDF).
Follow up in writing
The FTC recommends a letter after your call. Include your account number, when you noticed the problem, and when you first reported it. Keep a copy and your call notes.
Send credit card disputes to the billing-dispute address on your statement. Send debit disputes to the bank's address for errors. Both are usually on the back of the statement or on the bank's website.
A short dispute letter
"I am writing to dispute unauthorized charges on account ending in [last 4 digits]."
"On [date] I gave my card number to a person I now know was a scammer. I reported this by phone on [date and time] and was given case number [number]."
"I did not authorize these charges: [date, merchant, amount]. Please remove them and confirm in writing."
If you were tricked into making the payment yourself
The protections above cover charges you didn't make. If a scammer talked you into paying them, the card company may see it as a payment you approved. That doesn't mean give up. Call, explain you were deceived, and ask for a dispute. Ask about both card types. See can you get money back? for each payment type.
After the new card arrives
- Update automatic bills and subscriptions that used the old number.
- Check your statements every week for the next two months.
- Turn on purchase alerts in your bank's app, if offered.
- Be wary of anyone who calls offering "credit card loss protection" or asks you to "confirm" your number. The FTC warns this is a scam, since federal law already protects you.
- If you also typed in your Social Security number or date of birth, freeze your credit. See I gave a scammer my Social Security number.
- Report the scam at ReportFraud.ftc.gov.
How card numbers usually get stolen
Most often it's a fake text or email about a package, a toll, or a renewal. The FTC says fake package delivery texts were the most reported text scam of 2024, and toll-text scammers are after card and even Social Security numbers. If you're not sure about a message next time, a screenshot to Call My Owl gives a verdict in about five seconds.
Questions people ask
I gave a scammer my debit card number. Will I lose my money?
What can a scammer do with my credit card number?
Should I cancel my card if a scammer has the number?
Can a scammer use my card number without the CVV?
Need to act right now?
Use the free recovery wizard.
Who to call, what to say, in order.
Open the wizardRelated
The Night Watch · weekly
One short email a week about the scams going around
What's hitting inboxes and phones right now, what it looks like, and the one thing to tell your parents. Written in plain English.
Sources
- FTC: Lost or Stolen Credit, ATM, and Debit Cards
- CFPB: Getting money back after an unauthorized transaction
- FTC Data Spotlight: Top text scams of 2024
- FTC: ReportFraud.ftc.gov
- FTC: What To Do if You Were Scammed
OwlGuardian provides general safety information, not legal or financial advice. Policies differ by bank and by state, so confirm details with your bank or a qualified professional.

