If your card number, expiry date, CVV, or other payment details were exposed, contact the bank or card issuer using an official number or app.
Ask what protective action is appropriate for the card. Depending on the circumstances, the bank may recommend blocking, replacing, or monitoring the card.
Check recent and pending transactions for anything you do not recognize. Report suspicious transactions promptly through the bank's official process.
If the card details were entered on a suspicious website, consider whether you also exposed a password or other personal information and secure those accounts.
Do not share additional card details, OTPs, PINs, or verification codes with anyone who contacts you claiming to be helping.