STORE COMMUNITY ABOUT SUPPORT
Steam now requires the highest level of account security for instant trades and Market sales
To trade away or sell items instantly you’ll need: a Steam Guard Mobile Authenticator enabled on your account for at least 7 days. Otherwise, to give you time to discover and stop items from leaving your account if your account is compromised, items will be held by Steam for up to 15 days.
Now you can confirm trades and market sales through the Steam Mobile App. Ensure items never leave your account without your approval.FAQ
Get the best level of Steam account protection with the Steam Mobile App. Use the app to enable your phone as a Steam Guard Mobile Authenticator to verify your identity. The authenticator generates a code that you need to enter every time that you log on to your Steam account. The code changes every 30 seconds, can be used only once, and is unguessable.FAQ Setup Guide
Keep up with friends while on the go. Chat with friends from anywhere.
Browse the Steam catalog of Windows, Mac, and Linux titles from your phone. Never miss a sale again.
Remotely download and install your purchases straight to your PC at home.
Enable your phone as a Steam Guard Mobile Authenticator for the best level of Steam account security.
You can still add a phone number to your Steam account for additional security. This will help you recover your account or reset your password in the future.
What happens if I lose my phone? What happens if I get a new phone? Read the full FAQ here.