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Secure cards and lock the app ​

Hide a card's serial number and data until you unlock it, or lock the whole app. Both use your phone's fingerprint or screen lock, or a PIN you set in NFC Wallet.

Set up a way to unlock ​

NFC Wallet uses, in this order:

  1. Your phone's fingerprint, face or screen lock, if the phone has one set up.
  2. Otherwise, an app PIN you set in NFC Wallet.

WARNING

If your phone has no screen lock and you have not set an app PIN, a protected card opens without asking. Set a screen lock on your phone, or set a PIN as below, before relying on protection.

To set an app PIN:

  1. Open Settings (the gear icon on the Wallet screen).

  2. Under Security, tap Set PIN.

  3. Enter a PIN of at least 4 digits, enter it again under Confirm PIN, and save. NFC Wallet says PIN saved.

When your phone has biometrics, the PIN is the Fallback when biometrics are unavailable. Use Change PIN or Remove PIN to change it later.

NFC Wallet stores only a one-way hash of the PIN, not the PIN itself. There is no way to recover a forgotten PIN; remove it and set a new one.

Protect a card ​

  • When saving a new card, turn on Protect this card.
  • For a card already in your wallet, open it and tap Secure.

A protected card shows This card is protected and Authenticate to reveal its details. Its serial number is partly masked, for example 04:••:••:80. Tap Reveal and authenticate to see everything.

To remove protection, open the card, tap Unlock and authenticate.

Lock the whole app ​

  1. Open Settings.

  2. Under Security, turn on App lock.

  3. If your phone has no fingerprint or screen lock and you have no app PIN, NFC Wallet asks you to Set a PIN first.

Each time NFC Wallet opens, it shows Wallet locked with Unlock, and Use PIN if you set one.

What protection does not do ​

Protection controls what NFC Wallet shows on screen. The saved cards are kept in the app's private storage on your phone, which other apps cannot read, but they are not encrypted separately. Treat your phone's own screen lock as the real protection, and do not store anything in the notes that you would not want someone with your unlocked phone to see.

Deleting a card (Delete, then Delete in Delete card?) removes it permanently from the device. There is no undo.

Next steps ​