So, you’ve invested in a smart doorbell to feel safer, a robot vacuum to claw back a few hours on the weekend, and a smart thermostat because, frankly, heating an empty house at full capacity seems ridiculous. Well done – it all sounds very sensible and futuristic of you.
But one small detail you may have overlooked is that each of those devices can silently collect data about how you live: when you leave the house, when you come back, who visits and what your daily routine looks like. This doesn’t mean anything terrible is happening, but it’s just how a lot of smart technology works.
The question worth asking is not yours smart home Watching you (it probably isn’t, certainly not in the way the scary corners of the internet would have you believe), but who has legitimate access to the data it creates. It’s about what he’s entitled to do with it, and whether you have a say in the matter. Spoiler: You have more control than you might think, but only if you know where to look.
What information is your smart home collecting?
It’s tempting to think of smart devices as single-purpose tools: the The best home security systems record visitors, Smart thermostats Control the heating, and your robot vacuum cleans the floor. But in practice, this technique collects significantly more information than the single action you think you’re triggering.
take your Video doorbell. According to private investigator Jack Charman on National Private InvestigatorsIt doesn’t just store clips. “It’s logging motion events, timestamps, audio, device IDs and account links that tie everything to a specific home.”
Because it is rare to find Video doorbell without subscription, You’ll probably need to create an account to use it, and by doing so, you’ll be agreeing to share a lot more information than you realize.
Similarly, your smart thermostat can estimate temperature adjustments and occupancy patterns from home or remote mode. Your robot vacuum creates a detailed floor map of your property, and that too Smart plug Or a bulb can reveal which room is being used and when. “Individually these cues may seem harmless, but combined they can create a surprisingly precise behavioral timeline,” says Jack.
But it goes further than devices. Paul Bischoff, consumer privacy advocate Comparitech, Note that even relatively basic data can reveal more about you than you expect. “Using just an IP address and a timestamp, an observer can predict when you’re home, when you go to work, how many people live in your home.” Any device connected to your home Wi-Fi is perfectly capable of logging.
“Apps that control your devices are often the worst privacy offenders,” Paul adds, “because they’re on your phone, which probably holds a lot of your personal data.” Depending on the permissions you grant, the Smart Home app can access your camera, microphone, stored files, contact lists, and advertising identifiers that the device itself records.
Jack Charman is the founder and director of National Private Investigators, a top-rated private investigation agency in London. Specializing in intelligence-led investigations for private clients and businesses, he has extensive experience in surveillance, behavioral analysis and data intelligence.
Paul is a regular commentator on cyber security and privacy topics in national and international media including the New York Times, BBC, Forbes, The Guardian and many others. He has an in-depth knowledge of VPNs, having been an early adopter during his time in China seeking to use the open internet. He previously worked as editor of Tech in Asia in Beijing.
Who can see your data and what are they allowed to do with it?
If you’ve ever clicked “I agree” on a smart home app without reading the small print, you’re definitely not alone. But those terms and conditions often give companies more access to your data than you might expect, under a legal basis called “legitimate interests.” As Dre Aga, Senior Manager of Security Operations at the hunterExplains: “Legitimate interests are essentially a flexible legal justification that allows companies to process or share your data without your express consent, if they can argue that it is necessary for their business goals and does not seriously infringe your basic privacy rights.”
According to Guidance of ICOs Some examples of potential “legitimate interests” include:
- Improve their products or services: For example, your smart thermostat manufacturer can analyze how you adjust your heating schedule to inform future software updates.
- Sharing data within a group of companies for internal administrative purposes: Amazon can pass you by The doorbell rang Usage data in its broad advertising section
- IT and Network Security Monitoring: Your smart home platform can log device activity to detect unusual access patterns or potential account breaches
- Direct marketing based on your behavior and preferences: Your energy app may use your usage data to target you with offers Solar panels or EV chargers, although companies must also meet separate consent requirements under UK marketing regulations
But it’s not a free pass. As Jack Charman explains: “The organization has to show that the use of the data is necessary for a specific purpose, and then it has to balance its own interest against the impact on you as an individual. So if the impact on privacy is too high or unpredictable, it should not be allowed under this basis.”
Even legitimate interests do not automatically cover everything a company does want to To do with your data. “Under UK regulations viz PECRMany tracking technologies still require consent, even when a company tries to justify the use of extensive data under legitimate interests,” says Jack.
You have the right to object to processing under legitimate interests and companies need to be transparent about what they are doing with your data. But exercising those rights means knowing where to start.
Dre Aga is a senior manager of security operations at Huntress, a cybersecurity company specializing in threat detection and response. With a background in digital forensics, incident response and threat hunting, he is an active contributor to the security community through research and public speaking, and holds a number of industry certifications, including CISM and OSCP.
How can you protect yourself and your home?
Thankfully, limiting your smart home’s share doesn’t mean sacrificing the convenience that made it worth installing. A few simple changes to how your devices are set up can significantly reduce the amount of behavioral data stored and transmitted.
Adjust what is captured
If you’re wondering what Home security cameras are safeThe short answer is yes, if you are in control of what they capture and who can access it. Jack Charman recommends thinking carefully Where to put security camerasBy adjusting angles and using privacy zones so you’re not unnecessarily recording the street or neighboring properties – something that also keeps you on the right side. Home CCTV Laws.
Turning off motion sensitivity reduces continuous activity logging, and turning off audio recording completely removes a highly sensitive data stream. “These steps do not reduce core functionality, but they do reduce the amount of behavioral data that is stored and shared over time,” he says.
Review your application settings
Another top tip from the experts is to go into the settings of each device app and turn off anything that isn’t necessary for how you actually use it. For example, Dre Agha recommends opting out of “analytics” or “product improvement” data sharing, regularly deleting voice assistant command history, and enabling auto-delete for activity data so old records don’t accumulate indefinitely. It’s also worth auditing any third-party connections you’ve enabled and revoking access to services you no longer use.
Isolate your devices on the network
Dray Agha also recommends moving all smart devices to a dedicated guest Wi-Fi network. Doing so separates them from your personal computers and smartphones, limiting how much data they can hoover from the rest of your family.
Moving house? Don’t forget to reset
If you’re moving house, don’t overlook the appliances you’re leaving behind. Jack Charman’s advice is clear: completely reset every smart device and revoke cloud access Before You hand over the keys. “You don’t want to take an old account into a new owner’s home,” and likewise, you don’t want to take your behavioral data with it.
Buy smart home security
This camera works with any Wi-Fi router. Set custom activity zones and receive real-time notifications when motion is detected. Choose from local storage, which requires a microSD card, or subscribe to cloud storage
ToucanSolar Wireless Outdoor Camera
This solar-powered camera requires no subscription. Set custom activity zones and receive instant alerts when motion is detected. Includes free 24-hour cloud storage from day one
Ring Indoor Camera (2nd Generation)
This plug-in indoor camera works with any standard electrical socket. Place it on a flat surface or mount it on a wall using the included bracket. Compatible with Alexa for hands-free control
For more advice on keeping your home safe, see our guides How much does a home security system cost? And Best ways to protect your home from burglars.
