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Steam · Independent guide

Someone Else Logged Into Your Steam? How to Check and What to Do First

Concept illustration of two devices connected to one gaming account.

Steam Guard emails you didn't ask for, a phone prompt you didn't start, or items and purchases you don't recognize all point the same way. Steam's own advice is short: review Authorized Devices, sign out everywhere, change the password, then secure your email and scan your PC.

Check your account signals

We never ask for your password, Steam Guard codes or recovery codes; every check happens inside your own account.

Concept illustration, not a screenshot of the recovery process.

On this page

Steam's own order

The first steps follow Steam's published account security recommendations.

No codes, no passwords

Respawnr never collects credentials, Steam Guard codes or recovery codes.

Independent guide

Respawnr is not affiliated with Valve or Steam; Steam Support makes every account decision.

Signals on your own account that someone else got in

Each tile is something you can check in your own inbox, phone or Steam account.

Steam Guard codes you didn't request

An email with a Steam Guard code while you weren't signing in; Steam sends these when a device it doesn't recognize tries to log in.

Where to look

The inbox of the email address linked to your Steam account

Sign-in prompts on your phone

A request to confirm a sign-in you didn't start; decline it. If you scanned a QR code, the app shows the attempt's approximate location, so check it before approving.

Where to look

Steam Mobile app, Steam Guard tab

Security-change emails

Steam says it emails you about security changes; a notice about a password, email or Steam Guard change you didn't make is a strong warning.

Where to look

Your email inbox, including spam and archived folders

Devices you don't recognize

Computers, phones or browsers on the Authorized Devices list that you can't place.

Where to look

Account Details > Security & Devices (names may differ slightly on today's page)

Recent sign-ins

Sign-ins at times you weren't playing. Steam Help has a login history page among your account data; what it shows can vary.

Where to look

Steam Help site, data related to your Steam account (sign-in required)

Messages you never sent

Friends asking about links, trade offers or "Steam Support" chats that came from your profile.

Where to look

Steam Chat history and your friends' reports

Inventory or trade changes

Items missing, trade offers you didn't send, or Market listings you didn't create.

Where to look

Your Inventory, trade offers and Community Market history

Purchases or Wallet spending

Games, gifts or Wallet funds spent that you don't recognize.

Where to look

Account Details, purchase history link (wording may differ on today's page)

These checks are for the account you own. Respawnr does not help anyone watch another person's Steam activity, sign-ins or messages.

Scope & boundaries

What this guide helps with

  • Show which signals on your own account point to an intruder
  • Walk you through Steam's published security order
  • Point you to Steam Support on help.steampowered.com
  • Explain how to stop household members reaching a saved login

Outside this guide’s scope

  • Help you monitor another person's Steam account or messages
  • Ask for your password, Steam Guard codes or recovery codes
  • Trace, hack back or expose the person who got in
  • Sign in to or act on any account for you

Steam Support and Valve staff never ask for your password or authenticator codes, and they don't contact you through Steam Chat or Discord. Everything on this page is done by you, in your own account, through Steam's official tools.

What to do first, in the order Steam recommends

Steam's security recommendations list these steps in this order; the Support step is for when anything is out of your reach.

Use this while you can still sign in. If the password, email or phone was already changed and you're locked out, go to the hacked-account guide instead.

  1. Review Authorized Devices

    Look for devices you don't recognize in your account's security section.

    What to check: You have a clear picture of which devices had access.

  2. Sign out everywhere

    Use the sign-out-everywhere option; each device will need a Steam Guard code to get back in.

    What to check: Devices you couldn't place are gone from Authorized Devices when you check again.

  3. Change your Steam password

    Pick a new, unique password you haven't used anywhere else.

    What to check: Steam confirms the change, usually by email.

  4. Secure the email linked to Steam

    Change that email's password and review its own sign-ins, since Steam resets go through it.

    What to check: Only you can open the inbox that receives Steam's notices.

  5. Scan your PC for malware

    Steam warns malware hides in cheats, pirated software, fake betas and inventory tools.

    What to check: The scan is clean and no unfamiliar browser extensions remain.

  6. Contact Steam Support if something is off

    An authenticator, phone or email you didn't add needs Steam Support; use the Help site's stolen-account route.

    What to check: You have an open request on help.steampowered.com, not in any chat.

No one can promise how long Steam Support takes. Steam says it generally does not restore items that left an account; recent Counter-Strike 2 trades are the one owner-side exception, so act on the steps you control first.

A few details worth knowing

I got a Steam Guard code I didn't ask for. Does someone have my password?

Possibly. If your account uses email Steam Guard, Steam sends email codes when a device it doesn't recognize tries to sign in, which usually needs your password. Don't share the code, then sign out everywhere and change your password.

Could it be malware on my PC rather than someone with my password?

Yes. Steam lists malware on an already authorized PC, a compromised email, handed-over Steam Guard files and fake Valve staff as common routes. That's why the email and a malware scan are part of the first steps.

There's an authenticator or phone number on my account I didn't add. What now?

That means someone changed your security settings, and Steam Support is the route. Open a request through the stolen-account option on help.steampowered.com.

What if it's just someone at home using my saved login?

Talk to them rather than monitoring what they do, then stop the PC from remembering your login; our sign-out-everywhere guide shows the exact settings.

Where do I see recent sign-ins on my Steam account?

Start with the Authorized Devices list under Account Details, which shows the computers and phones allowed on your account. Steam Help also has a login history page among the data related to your Steam account (sign-in required); what it shows can vary, so treat an unfamiliar entry as a reason to secure the account rather than as proof.

Official guidance

Check the platform’s current instructions and the options shown for your own account.