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For each of those accounts, log in, unregister the to-be-reset key, and then double-check that you are still able to log in and modify the account's 2FA settings (without the to-be-reset key).Determine which accounts will be affected by a reset (see below).Because of this, we recommend following the steps below, prior to resetting.
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Resetting the FIDO2 application will effectively unregister your key with any accounts it was registered with using FIDO U2F or FIDO2. Please keep in mind that resetting the FIPS module will COMPLETELY wipe the U2F Master key and will invalidate the FIPS validation. If you have a FIDO U2F Security Key, you will need to manually "unregister" it from the services it is registered with there is no way to reset it. To identify which of these keys you have, follow steps 1-3 under Resetting the FIDO2 application, and check how YubiKey Manager identifies your key. Note: This article applies to the Security Key by Yubico and Security Key NFC, but not to the FIDO U2F Security Key, which cannot be reset.
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