Symptoms
- Smart home app lists a user you don't recognize
- Unfamiliar device appears in the connected devices list
- Settings changed that you didn't make, like schedules or names
- Notifications about actions you didn't take
Likely causes
- CommonLeftover access from installation or a previous ownerIf the device was installed by someone else (installer, previous homeowner) their account access may not have been removed.
- CommonFamily member added under a different profileA shared household account can show additional users you simply forgot were added.
- PossibleAccount password compromisedA reused or weak password could let someone else access and control your smart home account.
What to do
- Open the smart home app's user or family management settings and review everyone listed.
- Remove any user you don't recognize or no longer want to have access.
- Check the connected devices list for anything unfamiliar and remove it.
- Change the account password to something strong and unique.
- Turn on two-factor authentication for the account if available.
- Check device activity logs for actions taken by the removed user.
- If the device was previously owned by someone else, do a factory reset and set it up fresh under your own account.
When to call a pro
If a security camera or lock was accessed by an unknown user, consider changing physical locks or camera placement as an added precaution.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.