[Aardwolf]

How does that one authenticate itself then?

(NOTE: I didn't even know the PC gaming service steam had a mobile app ;))

[stevewodil]

For me, when I download Steam Authenticator it's tied to my phone number so the first time I login it will send me a text message code, and then from there it generates the authenticator codes in app

[chupasaurus]

To be precise they've implemented their own version of TOTP.

[wnevets]

Well in the scenario where you lose access to your email address you would theoretically still have access to your phone with the steam app already installed and authenticated