It has been discussed several times here about 2FA:
https://forum.autonomi.community/t/authentication-fido-support-looks-important
https://forum.autonomi.community/t/behavioral-biometric-with-safe
https://forum.autonomi.community/t/authentication-through-fido-u2f-uaf/
https://forum.autonomi.community/t/sqrl-secure-quick-reliable-login/
https://forum.autonomi.community/t/dual-layer-login-to-resist-keyloggers/
Etc…
Now with FIDO2 released, the adoption of hardware tokens for passwordless access will probably become mainstream.
I think it is time to think about this once again, as it is the few remaining weakpoints of the SafeNetwork, tailored attacks by phishing and keylogging.
If these vectors are removed, I think that there is no “traditional” attacks remaining that could be used for the SafeNetwork.