Use the Steam Mobile App for two-factor authentication

[Xablauziin]

I'm trying to get this achievement for the community badge but i can't, i downloaded the app and logged in and i don't recieve the achievement, ¿how do i to fix this? Thanks.

[Tev]

You need to enable the Steam Guard Mobile Authenticator.
https://support.steampowered.com/kb_article.php?ref=4440-RTUI-9218

Simply logging in on the app isn't enough.

[Bitcoin]

You have to enable the mobile authenticator on the mobile app in order to get the achievement.

[Exlust]

The best advice:
You need to connect it with your phone number, it will send you the code and you need to apply it in order to get the achievement.

[raddypoo]

Good to know!

[Xablauziin]

Thanks all :D

[Pastillitas]

Thanks!1 :D