The attestation of the authenticator (the device which creates the passkey). In this case, the "device" is the password manager, so KeePassXC. This means that it's not detectable that a passkey was created and stored in KeePassXC, see also here
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The attestation of the authenticator (the device which creates the passkey). In this case, the "device" is the password manager, so KeePassXC. This means that it's not detectable that a passkey was created and stored in KeePassXC, see also here