You authenticate either with something that you have (physical key, for example), something that you know (passwor for example), or something that you are (biometrics, basically).
Dopplegangers rule out that last one, but the previous two still work fine
That also goes for what you are. Biometric security has been rendered nearly useless since everybody and their mother started using it without giving a single shit about securing that data
You authenticate either with something that you have (physical key, for example), something that you know (passwor for example), or something that you are (biometrics, basically).
Dopplegangers rule out that last one, but the previous two still work fine
“Something you have” is not exactly a good way to authenticate. Once they steal it, they can assume your identity (see: ID Theft)
That also goes for what you are. Biometric security has been rendered nearly useless since everybody and their mother started using it without giving a single shit about securing that data