Lock Down Your Smart Home with This Privacy Settings Checklist

If your house already has a doorbell camera, a voice speaker, a thermostat, a smart lock, and a TV, the privacy problem is probably not one dramatic setting you missed. It is the pileup of defaults: recording histories left on, camera clips kept longer than needed, ad identifiers active on the TV, device data shared for product improvement, and one shared household account that everyone uses because setup was faster that way.

You are also not unusually careless. In 2026 coverage citing Reviews.org’s State of Consumer Data work, 45% of Americans said they had never adjusted their smart home privacy settings.[1] NIST’s survey of 401 U.S. smart home users also found confusion across device categories about what security and privacy actions to take, which is exactly how these systems feel once the boxes are recycled and the apps are buried in a phone folder.[2]

This smart home privacy settings checklist is meant for an ordinary installed home, not a lab-grade local-only setup. Work through it in order. The first two sections matter most because your network and accounts set the floor for everything else.

The One-Pass Checklist

Start With the Router, Even If the Camera Is What Annoys You

The router is boring until it is the reason everything else is exposed. NIST and the FTC both recommend basic home network hygiene for connected devices: change default credentials, keep software updated, use strong Wi-Fi encryption, and separate guests or less-trusted devices where possible.[3][4] None of that requires advanced networking. It does require opening the router app you have been avoiding.

• Update the router firmware first. In the router app or web dashboard, look for Settings, System, Firmware, Software Update, or Administration. Turn on automatic updates if the router offers them.
• Change the router admin password. This is not the Wi-Fi password. It is the password used to manage the router itself. Use a unique password saved in a password manager.
• Use WPA2-Personal or WPA3-Personal encryption. If the router still offers WEP or WPA, do not use them. If WPA3 causes older devices to fail, use WPA2/WPA3 mixed mode if available.
• Create a guest network or IoT network for smart home devices. Put cameras, speakers, thermostats, plugs, and TVs there. Keep phones, laptops, work devices, and storage drives on the main network.
• Remove devices you do not recognize. Most router apps show a connected-device list. Expect vague names, but anything clearly old, duplicated, or unknown deserves a pause.
• Turn off WPS if it is enabled. It was designed for convenience, not for the reality of a house full of always-on devices.

For the guest or IoT network, do not overthink the name. “Home-IoT” is fine. The important move is separation: if a cheap plug, old TV, or forgotten camera app has a problem later, it is not sitting on the same network as the laptop with tax documents.

One trade-off: some devices need to be on the same network as your phone for setup, casting, local control, or printer-like discovery. If something breaks, move only that device back or check whether your router has an option that allows devices on the guest network to be discovered by the main network. Do not dismantle the whole setup because one speaker complains.

Fix the Accounts Before You Fix Individual Devices

Smart home privacy settings live inside accounts as much as devices. If the same password is reused across the router, Amazon, Google, TV maker, camera app, and thermostat account, the privacy toggles are doing more work than they should.

• Give every major smart home account a unique password: Amazon, Google, Apple, Samsung, Roku, camera brand, thermostat brand, lock brand, router brand, and internet provider.
• Turn on two-factor authentication for every account that offers it. Prefer an authenticator app or security key over SMS when the platform supports it.
• Stop sharing one login across the household. Add family members through the platform’s household, home, or member settings instead.
• Remove former roommates, guests, contractors, house sitters, and old phones from account access.
• Check connected apps, third-party integrations, skills, and services. Revoke anything you do not recognize or no longer use.

This is the place to be mildly ruthless. A weather skill you tried once, an old automation service, or a “works with” integration from a device you returned does not need continued access to your household.

Where to Look

Voice Assistants: Delete the Recordings, Then Shorten the Memory

Voice assistants are useful. They also make privacy feel less theoretical because the device is waiting for a wake word in kitchens, bedrooms, and living rooms. A Northeastern University study cited in consumer privacy coverage found that more than 1,000 word combinations could falsely activate Alexa, which is a good reason to treat stored voice history as something to minimize, not something to ignore.[5]

Start by deleting what is already stored. Then change the retention setting so you are not doing cleanup forever.

Amazon Alexa Settings to Change

• Open the Alexa app, then go to More > Settings > Alexa Privacy.
• Open Review Voice History and delete past recordings. If you want the fastest cleanup, choose the broadest available date range.
• Open Manage Your Alexa Data and set voice recordings to auto-delete. Choose the shortest retention period you can live with.
• Turn off use of voice recordings for product improvement if the setting is available in your region and account.
• Review detected sounds, smart home device history, and skill permissions. Disable skills you no longer use.
• If an Echo device is in a bedroom, guest room, or office, consider muting the microphone when voice control is not needed.

Google Assistant and Google Home Settings to Change

• Open your Google Account, then go to Data & privacy.
• Find Web & App Activity and review whether voice and audio activity is being saved.
• Delete past Assistant activity from My Activity, then set auto-delete for activity history.
• Open the Google Home app and review household members. Remove anyone who should no longer control devices.
• Check Works with Google connections and unlink services you no longer use.

Apple Home and Siri Settings to Check

• In the Home app, open Home Settings and review People. Remove old household members and limit permissions where appropriate.
• In iPhone or iPad settings, review Siri & Search and Analytics & Improvements. Turn off sharing for Siri and dictation improvement if you do not want audio interactions used that way.
• Review which devices can act as home hubs and whether they belong to current household members.

If you are deciding whether to move more devices into Alexa, Google Home, Apple Home, SmartThings, or Home Assistant, use a broader smart home platform privacy comparison before rebuilding the house around one ecosystem. For today, the win is simpler: stop keeping more voice history than you need.

Cameras and Doorbells: Treat Footage Like a Household Log

A doorbell camera does not just record “security footage.” It records when kids leave, when packages arrive, who visits, when the dog walker comes, which neighbors pass by, and when the house looks empty. That does not mean you should unplug it. It means retention, audio, sharing, and access deserve a deliberate pass.

• Shorten video retention. In the camera app, look for Video Storage, Event History, Recording Management, Plan Settings, or Cloud Storage. Choose the shortest retention period that still serves your security purpose.
• Turn off continuous recording unless you have a specific reason to keep it. Motion-based clips usually expose less of the household routine.
• Disable audio recording where it is not needed. A driveway camera may need video, not conversations from the sidewalk.
• Set motion zones tightly. Exclude public sidewalks, neighbors’ windows, shared hallways, and streets where possible.
• Review shared users. Remove old phones, former household members, installers, and anyone who only needed temporary access.
• Check whether clips are shared with neighborhood, community, or public safety portals. Turn off automatic or overly broad sharing if you do not actively want it.
• Turn off personalized advertising or data sharing inside the camera account if those options appear.

The setting names vary by brand, and this is where people lose patience. Search the app for “privacy,” “video,” “storage,” “sharing,” “law enforcement,” “community,” “audio,” and “motion.” If the app has a web dashboard, check there too; some camera companies still hide account and subscription controls outside the mobile app.

For brand-by-brand retention periods across Ring, Nest, Arlo, Wyze, Eufy, Blink, and HomeKit Secure Video, use a dedicated smart home camera data retention guide. If you want the wider security context around what connected security systems collect, keep the broader smart home security and privacy guide for a second pass.

Thermostats: Occupancy Data Is Still Household Data

Smart thermostats feel less intimate than cameras, which is why their settings are easy to skip. But temperature schedules, geofencing, occupancy sensing, utility integrations, and energy reports can still say a lot about when people are home.

Copeland, which makes Sensi thermostats, reported in January 2026 that 55% of smart thermostat owners did not understand how their device collects data, while 70% said they would switch to a brand with better privacy. The same company also reported that privacy concern about smart home device data rose from 26% in 2022 to 37% in 2026.[6] Treat those numbers as manufacturer-sponsored directional evidence, not as a neutral privacy audit. They still match the practical reality: thermostat privacy menus are not where most people spend a Saturday.

• Open the thermostat app and look for Privacy, Data, Account, Energy Reports, Home/Away Assist, Location, Utility Programs, or Integrations.
• Turn off nonessential data sharing for product improvement, marketing, analytics, or partner services if the app gives you separate choices.
• Review geofencing. If the thermostat uses phone location to detect when you are away, decide whether the convenience is worth the location access.
• Check utility, rebate, demand-response, or energy-saving program connections. Keep the ones you knowingly joined; remove ones you do not recognize.
• Review household members and installers. Remove access for anyone who no longer needs to change temperature, schedules, or account settings.
• If the thermostat provides monthly energy reports, check whether those reports are used only for your account or also for broader analytics or marketing.

The trade-off is usually clear. Turning off geofencing may make automatic home/away changes less accurate. Disabling certain energy programs may affect rebates or utility incentives. That is a household decision, not a reason to leave every sharing option untouched.

Smart Locks: Keep Access Tight and Logs Useful

A smart lock’s privacy settings are less sprawling than a TV’s, but the stakes are obvious. The goal is not to bury yourself in alerts. It is to make sure only current people have access and that the lock is not keeping or sharing more activity than you need.

• Audit every user code. Delete codes for contractors, guests, former pet sitters, previous owners, old roommates, and one-time visitors.
• Use named codes instead of shared codes. “Dog walker” and “Grandma” are easier to revoke than a single family PIN everyone passes around.
• Set temporary or scheduled access for people who only need entry during certain days or hours.
• Review activity logs. Keep them if they help you monitor access, but know who in the household can see them.
• Turn on firmware updates or check for updates manually. Locks are not the place to run forgotten software.
• Review integrations with Alexa, Google Home, Apple Home, SmartThings, security systems, and vacation rental tools. Remove anything unused.

Be careful with voice unlock. If you enable it, use the platform’s required voice code or confirmation protections. If you do not use it, leave it off. Voice locking is convenient; voice unlocking deserves a higher bar.

If your lock is old, unreliable, or missing basic access controls, compare replacements with a practical smart lock buyer’s guide or the updated 2026 smart lock guide. Replacement is not the first privacy step, but sometimes the settings you need simply are not there.

Smart TVs: Turn Off the Advertising Machinery

The smart TV is where many households forget they bought a data-collecting device at all. It looks like an appliance, but its menus often include viewing data, ad personalization, voice features, app tracking, and cross-device measurement.

• Open TV Settings and look for Privacy, Terms & Privacy, Advertising, Smart TV Experience, Viewing Information, ACR, Voice, or Data Services.
• Turn off automatic content recognition, often labeled ACR, viewing information, viewing data, or smart interactivity. This reduces tracking of what appears on screen.
• Reset or limit the advertising ID. Disable personalized ads where the TV platform allows it.
• Turn off cross-device tracking or data sharing with partners if those options appear.
• Review voice settings. If you do not use the TV’s built-in microphone or voice remote, disable voice recognition or voice data sharing.
• Delete unused streaming apps and sign out of apps you no longer use.

Expect the TV to complain in polite menu language. Some features may be described as improving recommendations or the viewing experience. That may be true. It is still fair to decide that the TV does not need to identify shows, ads, and devices across the room to do its main job.

When You Buy the Next Device, Do Not Let the Label Do All the Thinking

The FCC’s U.S. Cyber Trust Mark program is operational in mid-2026, and the Label Administrator application window closed in February 2026.[7] That is useful progress, but it is still early. Relatively few consumer products carry the mark yet, so it cannot serve as a shortcut for most devices already sitting in homes.

For new purchases, treat the mark as one helpful signal when you see it, not a substitute for reading the app’s privacy controls. Before buying, check whether the product supports two-factor authentication, automatic updates, clear data deletion, separate household users, local controls where relevant, and simple retention settings for recordings or clips.

Matter support may help with interoperability, but the sources here do not support broad Matter-specific privacy claims. If privacy is the reason you are choosing a platform, compare the platform’s account model, cloud dependence, recording controls, and data-sharing settings directly rather than assuming the protocol settles the question.

Make It a Household Routine, Not a One-Time Cleanup

The annoying part of smart home privacy is not that every setting is difficult. It is that the settings move. Apps redesign menus, devices gain features, subscriptions change retention rules, and a house quietly adds one more plug, speaker, camera, or TV.

• Recheck privacy settings after major firmware updates or app redesigns.
• Audit accounts whenever someone moves in, moves out, changes phones, or no longer needs access.
• Review camera and voice recording retention after changing subscriptions.
• Check router connected devices after adding new smart home products.
• Repeat the full checklist on a regular schedule, such as twice a year, and put it on the same calendar as smoke detector batteries or HVAC filter changes.

That is the manageable version of smart home privacy: not panic, not perfection, and not a second career in router administration. Just a household protocol for the defaults that should have been easier to find in the first place.

References

1. Smart Homes Won't Scale Until The Privacy Problem Is Fixed — Forbes, May 2026
2. Survey on Smart Home Users' Security and Privacy Perceptions and Actions — NIST
3. 7 Tips to Keep Your Smart Home Safer and More Private — NIST
4. Securing Your Internet-Connected Devices at Home — FTC
5. Do Alexa and Google Assistant Devices Compromise Your Privacy? — SafeHome.org, Aug 2025
6. Copeland Study Warns U.S. Homeowners' Trust in Smart Home Data Practices Has Reached a Critical Low — Copeland, Jan 2026
7. U.S. Cyber Trust Mark — FCC