Two-factor means requiring a second proof besides the password. Turn on two-factor.
The second factor should be something you have rather than something else you know. Two-factor by text message is the weakest kind, since a phone number can be stolen.
1adjectivetwo-factorRequiring a second proof besides the password.
“The account had two-factor turned on and survived the leak.”
two-factor is a quality.
Practised in Computing & Code