I have seen/heard online stores (not necessarily within the U.S., maybe international) asking buyers to provide a picture of their debit cards via email (e.g., for verifying identity). My intuition tells me that this is not safe. Moreover, I don't think there is any reason for an online seller to ask this, because once the buyer provided the card number, expiration date, and CVV, the seller should already be able to charge the card, right? So my questions are:

  1. Why would some seller, especially online seller, ask buyers for a picture of their debit cards?
  2. Is it actually okay for a buyer to provide a picture of debit card to a seller via email?
  3. If a buyer has already send a picture of his/her debit card to seller via email, what (bad things) could happen? (How?)
  4. If the buyer, when sending a photo of his/her debit card to a seller, blocked everything but the last four digits and name on card, would that be safe (or better)?
  5. If a buyer has already send a picture of his/her debit card to a seller via email, what should he/she do (for damage control)? Is blocking the card and asking the bank to issue a new one the only option?

I'm aware that a related question has been asked here, but my question is about debit cards, and I would like to see more details.

  • 1
    Why would a debit card be fundamentally different from a credit card?
    – schroeder
    Commented Jun 3 at 15:11
  • @schroeder I have seen prople saying debit card is way much less secure than credit card if a fraud is involved. For example, how much money you will be responsible for could be different. But honestly I am not familiar with the issue. Neither am I familiar with the mechanism of debit and credit card transactions. So that's why I am asking it here.
    – Beerus
    Commented Jun 3 at 15:15
  • There isn't a fundamental enough difference for this to be a separate question. Your question number five is more of a personal finance question and not an information security question.
    – schroeder
    Commented Jun 3 at 15:37


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