Is Someone Spying on Your Facebook? 8 Simple Ways to Catch Them Quickly

Check Where You’re Logged In in Facebook settings to see all active devices and locations.

Review recent login activity for unknown cities or devices you don’t recognise.

Look at your recent posts and messages for activity you did not create.

Turn on login alerts to get notified whenever someone logs in from a new device.

Check connected apps and remove any suspicious third-party apps.

Change your password immediately if you notice unusual activity.

Enable two-factor authentication (2FA) for extra account security.

Review account recovery email and phone number to make sure they were not changed.