A smart home security audit helps you find weak account settings, missed updates, unnecessary access, and privacy controls that no longer match how your household uses its devices. Use this reusable checklist for cameras, doorbells, speakers, plugs, hubs, and other connected gadgets before acting, after a major change, and whenever a manufacturer or platform updates its software.
Overview
Smart home security is not one setting. It is the combination of the device, its companion app, your home network, the online account behind it, and the people who can access it. A camera may have a strong password but still expose more video than intended. A smart plug may have no microphone or camera, yet an old account, shared login, or unsupported firmware can still create avoidable risk.
Start by making an inventory. Record each device, its room, the manufacturer, the model, the app used to control it, the account owner, and whether it stores data locally or in the cloud. Include devices that are easy to forget, such as streaming boxes, baby monitors, robot vacuums, smart displays, garage controllers, and older hubs.
Then work through these priorities in order:
- Account protection: Use a unique password for each important account and turn on two-factor authentication when the service offers it.
- Software support: Check for firmware and app updates, and look for the manufacturer’s current support information. If support status is unclear, treat the device as a replacement candidate rather than assuming it will receive fixes indefinitely.
- Access control: Remove former household members, old phones, unused integrations, and accounts that no longer need control.
- Privacy: Review recording, microphone, camera, voice history, data-sharing, and notification settings according to the device’s purpose.
- Network placement: Keep the main Wi-Fi password private and consider a guest or separate network for devices that do not need access to computers, storage, or other sensitive equipment.
Menu names vary by brand and app version, so look for sections labeled Account, Security, Privacy, Users, Devices, Firmware, System, or Data controls. If a setting is missing, check the product’s help documentation rather than assuming it is unavailable.
Checklist by scenario
| Device type | Check first | Recommended review |
|---|---|---|
| Security cameras and doorbells | Firmware, account protection, camera sharing, cloud recording | Limit viewing permissions, enable relevant alerts, review microphone and camera controls, and confirm the recording retention setting matches your needs. |
| Smart speakers and displays | Voice history, voice purchasing, linked accounts | Delete old recordings if desired, restrict purchases, review connected services, and use microphone or camera controls when privacy is more important than convenience. |
| Smart plugs, lights, and switches | Firmware, shared users, automation rules | Remove abandoned routines, check whether remote control is necessary, and verify that guest access cannot change more devices than intended. |
| Hubs and bridges | Administrator account, firmware, integrations | Review every connected service and automation. Remove integrations you no longer recognize or use, especially those with broad control permissions. |
| Thermostats and sensors | Occupancy data, location access, user permissions | Check who can see schedules or presence information, and disable phone permissions that are not needed for the feature you use. |
| Robot vacuums and other mobile devices | Map data, microphone or camera access, app permissions | Review stored maps, household sharing, remote-control access, and whether the device really needs location, contacts, or voice permissions. |
When you buy a new device
Before connecting it, confirm the exact model and download the official app from the platform’s normal app store. Change any setup password or default credential when prompted. Install available updates before placing the device into regular use, then review account recovery options and two-factor authentication. If the device supports multiple users, invite people individually instead of sharing one administrator login.
When someone leaves the household
Remove that person from each relevant device and platform account, revoke shared links, delete trusted phones, and change passwords if the household used a shared login. Check routines and voice profiles as well. A person who no longer lives in the home should not retain access simply because their account remains in an old family group.
After a security alert or suspicious activity
Change the affected account password from a trusted device, end active sessions if the service provides that option, enable two-factor authentication, and inspect recent sign-ins. Review every linked device and integration rather than only the product named in the alert. If you cannot confirm the device’s status, disconnect it from the network while you investigate.
When moving or selling a device
Remove the device from the app and account first, then perform the manufacturer’s factory reset. Delete local recordings, maps, or saved settings where the product allows it. A reset should be treated as a final step after account removal, not a substitute for it. For storage cards, follow the device instructions to erase them securely or keep the card rather than passing it to another owner.
What to double-check
Firmware support: Find the model number and check the manufacturer’s support page or product app for update availability and support information. Do not infer support from a similar-looking product. Hardware revisions can have different software paths. If an update repeatedly fails, verify power, network connectivity, available storage, and the exact model before trying again.
Default passwords and recovery: A unique account password is more useful than a password reused across several services. Review the recovery email address, phone number, backup codes, and trusted devices. Make sure the person responsible for the home can recover the account without relying on a former resident’s email.
Two-factor authentication: Turn it on for the main account and any account that can view cameras, unlock doors, control alarms, or manage the home hub. Prefer a method you can reliably access, and store backup codes in a secure place. Authentication settings may live at the account level rather than inside the individual device screen.
User permissions: Distinguish between an administrator, a household member, a guest, and a viewer. Give each person the least access needed. Camera viewing, door control, automation editing, and account billing do not need to be bundled together for every user.
Cloud recording and local storage: Check what is recorded, how long it is retained, who can view it, and whether clips are automatically shared with another service. If a camera supports local storage, secure the card or drive and understand that local storage may reduce cloud features. Turn off recording in rooms or at times where it is not appropriate.
Microphone, camera, and data-sharing controls: Review app permissions and device controls separately. A phone app may request location or Bluetooth access for setup, while the device itself may have microphone or camera controls. Disable optional analytics, personalization, or third-party sharing when you do not need those features, while recognizing that some functions may stop working.
Common mistakes
- Keeping the default setup: The fastest installation is not always the safest. Finish the account, update, and permission review before considering the device configured.
- Sharing one administrator login: Shared credentials make it difficult to remove one person and prevent you from seeing who changed a setting. Use individual invitations where available.
- Ignoring old devices: An unplugged camera, abandoned hub, or forgotten app account can still retain access until it is removed or reset.
- Assuming a factory reset removes online access: Account links, shared users, and cloud data may require separate removal steps.
- Putting every gadget on the same network: Use your router’s guest or separate-device features where practical, but do not enable network isolation without checking whether the device needs to communicate with your phone, hub, or printer.
- Turning off every privacy feature without testing: Excessive restrictions can break alerts, automations, or emergency functions. Change one setting at a time and confirm the feature still works.
- Buying based only on features: Before adding a device, check its update process, account controls, storage choices, and end-of-life information. These are part of the product, not minor extras.
When to revisit
Run a quick audit whenever you add, remove, sell, or relocate a device; change the home Wi-Fi password; change household members; receive a security notification; or notice an unfamiliar login, automation, or shared user. Recheck cameras and doorbells after changing recording plans, privacy zones, or notification rules.
For routine maintenance, schedule a short review at least a few times a year, and include it in seasonal planning cycles when you already test alarms, batteries, door locks, or backup power. Revisit the checklist after major app redesigns, firmware changes, router replacements, or changes to the household’s preferred smart-home platform. Manufacturer support pages and app menu paths can change, so update your notes rather than relying on an old screenshot.
To finish today’s audit, choose one device category and work through this order: inventory it, update it, secure the account, remove unnecessary users, review privacy settings, test the essential function, and record the date of the check. If a product no longer receives updates, has an account you cannot recover, or cannot be reset and removed cleanly, disconnect it and replace it with a better-supported option. That simple record turns a one-time cleanup into a practical smart home security checklist you can reuse.
