An unfamiliar phone or computer listed on your Google Account is unsettling. Sometimes it is just an old device you forgot about, a browser you signed into once, or a phone you reset. Sometimes it means someone else has access to your Gmail, Photos and saved passwords. This guide shows you how to see every device signed in to your Google Account, how to sign out of the ones you don’t want, and what to do next if a device really isn’t yours.
What You’ll Need
- A phone or computer where you are signed in to your Google Account
- Your current Google Account password
- Access to your recovery phone number or recovery email, in case Google asks you to verify it’s you
Step 1: Open the Device List
The device list lives in your Google Account settings and works the same way on a computer, Android phone or iPhone.
- Go to your Google Account at myaccount.google.com. On an Android phone, you can also open Settings > Google > Manage your Google Account.
- Select Security & sign-in (labelled Security on some versions).
- In the Your devices panel, select Manage all devices.
You will see devices you are signed in to now, plus devices you were signed in to over the last few weeks. Devices you have already signed out of show a Signed out label.
Step 2: Work Out Whether Each Device Is Yours
Select any device to see more detail, such as its type, approximate location and when it was last active. Before you panic, check whether it could be one of these:
- A new phone, tablet or laptop you recently set up
- A shared, work or public computer you signed in to
- A device you reset to factory settings, which can still appear for a while
- The same device listed more than once, because a new browser or re-entering your password creates a separate session
Keep two quirks in mind. Location is approximate and may show a nearby town rather than where you actually were. The last-active time can also be more recent than your last use, because devices sync in the background.
Step 3: Sign Out of Devices You Don’t Use
- In Manage all devices, select the device.
- Select Sign out and confirm.
- If several sessions share the same device name, sign out of all of them so none can keep accessing your account.
It is good practice to sign out of any phone you have sold, given away, lost or no longer use, even if you recognise it.
Step 4: If a Device Isn’t Yours, Secure Your Account
Signing out an unknown device is only the first move. If someone signed in without your permission, they may know your password. Google recommends working through these steps:
- Change your password straight away. Use a strong password you haven’t used anywhere else. Then change the password on any other site where you used the same one.
- Review security events. In Security & sign-in, open Recent security events. For anything you don’t recognise, choose No, it wasn’t me and follow the prompts.
- Check your recovery details. Make sure the recovery phone number and recovery email are yours. An attacker may change these to lock you out later.
- Turn on 2-Step Verification. Even if someone learns your password, they will also need a second step, such as a prompt on your phone, to get in. If it is already on, check that every method listed belongs to you.
- Review third-party access. Remove any apps or services with access to your account that you don’t recognise.
Check Gmail for Hidden Changes
Attackers sometimes set up Gmail so they keep receiving your mail after you lock them out. Open Gmail settings on a computer and check Forwarding, Filters, Mail delegation and automatic replies. Delete anything you didn’t set up yourself.
Common Problems and Fixes
The same phone appears twice: this is usually separate sessions from different browsers or apps on one device. Sign out of the old ones.
A device keeps reappearing after you sign it out: someone may still know your password. Change it, then turn on 2-Step Verification.
The location is in a different city: locations are approximate and are often based on your internet provider’s network. Check the device type and time before assuming the worst.
You can’t sign in at all: use Google’s account recovery page and answer the questions as accurately as you can, ideally from a device and network you have used before.
Keeping Your Account Safe
Your Google Account often holds your email, photos, contacts, saved passwords and payment details, so it is worth protecting well. Use a screen lock on every phone and computer you sign in on. Avoid staying signed in on shared or public computers. Remove Chrome extensions you don’t recognise. If you think someone may have reached your bank or other financial accounts through your email, contact your bank directly.
The same habits help elsewhere too. Our guides to the WhatsApp privacy checkup and recovering a hacked Instagram account walk through similar steps for those apps.
Frequently Asked Questions
Does signing out a device delete anything?
No. It ends that device’s access to your account. Your emails, photos and files stay in your Google Account.
Can someone see my device list without my password?
No. The list is only visible once you are signed in to your own Google Account.
How often should I check my devices?
A quick look every few months, and whenever you replace a phone or laptop, is a sensible habit.
Will the other person know I signed them out?
They will be asked to sign in again on that device. If you have also changed your password, they won’t be able to get back in.
Google explains the device list in its official help article, See devices with account access, and covers recovery in Secure a hacked or compromised Google Account.
Steps and menu labels may change as apps update. Last updated: October 2026.