The concept of “passwordless” authentication has been gaining significant industry and media attention. But, when you dig deeper, these passwordless solutions are still reliant on passwords. As these emerging authentication solutions are relatively new, a fallback means of authentication will be required for the foreseeable future. Credentials are typically required to authenticate the system at some point in the security chain. No single, effective solution for secure authentication exists, but only as part of a broader cybersecurity approach in which multiple layers of layers are deployed.
Source: https://thehackernews.com/2021/04/passwordless-more-mirage-than-reality.html