Here’s how you can check if someone has accessed your Gmail account without permission

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Gigabit Systems
July 7, 2025
20 min read
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Here’s how you can check if someone has accessed your Gmail account without permission:

1. Check Gmail Account Activity

  1. Open Gmail on your computer.

  2. Scroll to the bottom-right corner of your inbox.

  3. Click on “Details” next to Last account activity.

  4. A pop-up will show recent sessions:

    • Access type (Browser, Mobile, etc.)

    • IP addresses used

    • Location (approximate)

  5. Look for unknown locations or devices.

2. Review Security Activity via Google Account

  1. Go to Google Account Security.

  2. Under “Your devices,” click “Manage all devices.”

  3. See every device that’s signed into your Google account.

  4. Click any unfamiliar device, then select “Sign out.”

3. Review Recent Security Events

  1. In the same Security section, look for “Recent security activity.”

  2. Review logins, password changes, or 2FA events.

  3. If anything looks suspicious, take action immediately.

4. Change Your Password & Enable 2-Step Verification

  • If you spot unusual activity:

    • Change your Google password immediately.

    • Turn on 2-Step Verification to protect future logins.

Helpful Tip:

If your account was accessed, also check filters and forwarding settings in Gmail settings. Hackers sometimes auto-forward emails to themselves.

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