I have an NFC/RFID keychain that looks pretty much like this one:

enter image description here

When I read it with an Android app called "Nfc Reader", it shows me a specific ID (always the same) and it says that these technologies are used: IsoDep, NfcA, NdefFormatable

Now I'm wondering if it would be possible to clone it, or if these technologies somehow prevent it.

  • 3
    Possible duplicate of How do NFC tags prevent copying?
    – Overmind
    Commented Oct 18, 2016 at 11:13
  • Your question is a duplicate of: security.stackexchange.com/questions/63483/…
    – Overmind
    Commented Oct 18, 2016 at 11:14
  • 1
    How is my question a duplicate? I'm asking about specific technologies.
    – Forivin
    Commented Oct 18, 2016 at 12:46
  • 2
    @Overmind I agree it is not a duplicate. This question is about three specific named technologies that the suggested duplicate does not mention, neither in questions nor answers.
    – Anders
    Commented Oct 18, 2016 at 13:46

1 Answer 1


The mentioned techologies - compare Android: advanced NFC - seem completely unrelated to the cloneability issue. NfcA is just ISO 14443, type A commnunication, ISODep is communication protocol and NdefFormatable indicates, that reformatting is supported.

Considering this and the fact that none of these technologies addresses some new extended capabilities it still seems a duplicate of the suggested question.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .