Hello i add card on Apple Pay and i see (Device Account Number )1196, i delete it card and add again see same Device Account Number 1196 and last transaction. Why now Apple Pay don't generated new Device Account Number for my card for safe payment?
[Re-Titled by Moderator]
The device account number stays the same until your device changes. The DAN is encrypted. Apple doesn’t have a key, your device doesn’t have a key, the merchant doesn’t have a key. Only your bank has a key to unencrypt the number.
Who is seeing the non-encrypted number? Merchant doesn’t have a key, you don’t have a key, Apple doesn’t have a key, who has a key to see the number?
The device account number stays the same until your device changes. The DAN is encrypted. Apple doesn’t have a key, your device doesn’t have a key, the merchant doesn’t have a key. Only your bank has a key to unencrypt the number.
Who is seeing the non-encrypted number? Merchant doesn’t have a key, you don’t have a key, Apple doesn’t have a key, who has a key to see the number?
Seeing transactions is not an indication of anything, other than you removed your card and it took time for the Wallet app to update.
The last 4 digits change only if the device changes. Put the card on an Apple Watch and the last 4 digits will be different.
I’m telling you the bank generates the DPAN as part of the verification process. How can iPhone generate an encrypted number and the bank just develop the key? The information to produce the DPAN is transmitted to the bank. Bank verifies device is credit card account owners by contacting owner through the contact methods bank has on file.
Once device is verified to be owners, bank then encrypts data, sends to device and stores key securely on bank servers. iPhone only stores encrypted data and display last 4 digits of DPAN. DPAN is used by merchant for refunds and to verify transaction.
Jeff is spot-on.
The Device Account Number (DAN) is a fixed, permanent proxy representing one “card” on your one device.
The exact same card installed on a different device (e.g. iPad) would have a different DAN.
Your DAN is only one element of the longer data message sent during payment processing.
Only the Token Service Provider (TSP) can decrypt the cryptogram and “cross” the DAN to your “actual/real” Personal Account Number (PAN) … which it then forwards-on for payment processing.
Excerpted from:
https://codeburst.io/how-does-apple-pay-actually-work-f52f7d9348b7
The full device number set is unique to your device. If you want a new device number, you’ll need to purchase a new device or install your card on an alternate device.
Why are you worried about a device number? Do you understand how secure it is?
Previously, my gambling purchases could not see my card, now they see my card, I'm worried about the security of my card, why does DAN(DEVICE ACCOUNT NUMBER) remain the same?
I want what DAN change after add card on Apple Pay
When a card is added to Apple Pay, it is encrypted through tokenization, a DPAN is created each time after a card is added, it is unique, this was created for the user's safety, I now have the same DPAN, and I'm afraid for my card security, 2 days ago, literally, the DPAN was different when adding the same card, I want to understand what should I do next?
The evidence is this:
1) the same 4 digits DAN: 1196
2) When I deleted the card a week ago and added it again, I did not see the previous transactions that I made, and these 4 digits that I saw were generated, and now I see the previous transactions
they themselves write in Apple Pay that it will be generated after adding it to a unique one so that the seller does not see it, but I see my past transactions!
Where are you seeing the entire DPAN? What key do you have possession of to know the DPAN is the same? Where is your proof that the DPAN was different and now it isn’t.
When you add a card to an Apple Pay tokenization card, it generates another DPAN, I know what I'm talking about, but now the service has stopped working, why did this happen?
Please contact the support team at the bank that issues the token. In my experience the DPAN token is generated by the bank (only the bank has the key). I’ve seen banks reuse DPAN and occasionally others generate a new number and new key.
You don’t know besides Apple Pay Google Pay, Samsung Pay, where you can also add your card and pay through NFS so that DPAN generates a token?
Apple Pay didn't generate a new Device Account Number for my card
