Systems containing important information should be logged in using a multi-authentication logon, also known as either “two-factor”, “multi-factor” or “dual factor” authentication.
For example, when first logging in with a password, a one-time authentication code can also be sent to the user as a text message. In this case, he has been identified by two factors (knowing the password and owning the phone).
Biometric identifiers (eg fingerprint) and other devices can also be used for two-stage authentication. However, it is worth considering the costs and implications for privacy.