1. I'm doing the best I can;Abraham,2022
2. Geographical security questions for fallback authentication;Addas,2019
3. Multi-factor biometrics for authentication: a false sense of security;Al-Assam,2010
4. Social authentication applications, attacks, defense strategies and future research directions: a systematic review;Alomar;IEEE Commun. Surv. Tutor.,2017
5. Should we rush to implement password-less single factor FIDO2 based authentication?;Alqubaisi,2020