Securing Your Smart Home Devices So They Don't Become a Network Risk

August 27, 2026 · Fiber internet for real communities

Public domain, via Wikimedia Commons

Every smart device you add to your home network, a camera, a thermostat, a plug, a doorbell, is a potential door into your entire network. Studies of home network traffic consistently find that smart home devices generate more unwanted connection attempts than computers or phones. The single most effective fix is putting these devices on their own separate network, isolated from your laptops, phones, and any work systems. That one change blocks most of the damage a compromised device can do.

The part people miss: the device doesn't have to be hacked to hurt you

Most people picture a hacker breaking into their smart camera and watching them. The more common problem is quieter. A cheap device with weak security gets pulled into a botnet, a network of hijacked devices used to attack other targets. Your device isn't the goal. It's a tool. You might never notice, aside from a slower connection and higher upload activity in the background.

The other thing people miss is that once a device is on your main network, it can often see and talk to everything else on that network, including your laptop, your work files, and any other connected gadget. A smart plug doesn't need to talk to your computer. If it can, that's a design flaw in your setup, not a feature.

This matters more for remote workers and small businesses than most people realize. If your work laptop and your smart doorbell share a network, a weakness in the doorbell can become a path to your work data. For municipal and community broadband planners, this is also a reason to think about network education alongside network speed. Fast internet on an unsegmented, unpatched home network still leaves residents exposed.

What to actually do

• Put smart devices on a guest or separate network. Most routers made in the last several years support a guest network or a second SSID. Put cameras, plugs, speakers, and other IoT gear there, separate from computers and phones.
• Change every default password. Default logins for smart devices are public information. If you haven't changed it, assume someone else already has access.
• Update firmware regularly. Many devices don't update automatically. Check manufacturer apps every month or two, or enable auto-update where it's offered.
• Turn off features you don't use. Remote access, voice control, and cloud connectivity are common attack surfaces. If you're not using a feature, disable it.
• Buy from manufacturers with a track record of security updates. A cheap camera with no update history is a bigger long-term risk than a slightly pricier one from a company that patches known issues.
• Use a strong, unique Wi-Fi password and WPA3 if your router supports it. Older WPA2 is still common and workable, but WPA3 closes several known weaknesses.
• Review connected devices periodically. Most routers show a list of connected devices. If you don't recognize something, investigate it.

None of this requires special expertise, and most of it takes less than an hour total to set up. The router settings are the part people skip, mainly because guest network setup varies by brand and isn't always obvious. If your router is more than four or five years old, it may not support the segmentation or security standards newer devices expect. That's a reasonable point to call your internet provider or a local IT professional for a router upgrade rather than trying to force outdated hardware to do a modern job.

A strong, modern router matters here as much as the speed of your connection. At GigSpeed, we hear from customers who assumed a faster plan alone would fix a shaky home network, when the real issue was router hardware and device hygiene. Fiber gives you the bandwidth. What you do with your home network setup determines how safe that bandwidth actually is.

Related: For a deeper look at protecting your home network beyond smart devices, see our guide on setting up a secure home Wi-Fi network from scratch.