That’s where the Steam Guard mobile authenticator comes in. It adds an extra layer of security to protect your digital library, virtual items, and online reputation.

What is Steam Guard?

Steam Guard is a two-factor authentication feature of Steam. It provides an additional level of security above your username and password. With this feature enabled, Steam Guard asks you for a one-time code every time you log in to Steam on a new device. While Steam Guard may seem like an unnecessary inconvenience, it keeps your account safe. Since you’re the only one with access to the temporary codes generated by Steam Guard, nobody can steal your account. Even if they obtain your password, they can’t log in. There are two versions of Steam Guard. The basic version sends you a code in an email each time you log in through a new device. The other generates a temporary code through the Steam mobile app on your phone. The Steam Guard mobile authenticator is more secure since a thief would need your phone in their physical possession to break into your account.

Who Needs the Steam Guard Mobile App?

The Steam Guard mobile authenticator isn’t strictly necessary. Still, it’s convenient and adds an extra level of security to your account. If you own several Steam games or have expensive items in games like DOTA2 and CS:GO, using the Steam Guard mobile authenticator is worth your time. Using the mobile authenticator also has benefits, if you want to utilize the Steam trading functionality or buy and sell items on the Steam Market. In addition to providing mobile authentication codes, the app allows you to instantly approve or deny any Steam trade or Steam marketplace transaction.

How to Set Up the Steam Guard Mobile App

Setting up the Steam Guard mobile authenticator is a two-part process. First, you’ll set up the Steam mobile app. Then, you’ll activate the authenticator feature. During this process, you need access to the email address that’s associated with your Steam account. Here’s how to set up the Steam mobile app and activate the Steam Guard mobile authenticator:

How to Use the Steam Guard Mobile App

The Steam mobile app provides access to many Steam functions through your phone. You can view the Steam store, check your friend list, send messages and trade requests, view your profile and games, and more. Beyond the store and the social functions of the app, you can also confirm or reject trade offers and Steam Marketplace transactions and retrieve temporary Steam Guard codes any time you want to log in to Steam on a new device. Here’s how to find your temporary codes in the Steam Guard mobile authenticator: