Keeping Smart Home Devices From Compromising Family Safety
How to isolate smart home devices on your network so they cannot compromise your family's privacy or safety.
Overview
Smart home devices — from voice assistants and smart bulbs to connected doorbells and baby monitors — can introduce security vulnerabilities to your home network. A poorly secured smart device can be exploited to access other devices on your network, eavesdrop on your family, or leak personal data. Network isolation is a straightforward technique that limits these risks without giving up the convenience of smart home technology.
Why Smart Devices Need Isolating
Many smart home devices run on minimal software that is rarely updated, lacks encryption, and may have known security flaws. When these devices share a network with your family's phones, laptops, and tablets, a compromised smart device could potentially be used as a stepping stone to access more sensitive devices. Isolating them on a separate network segment closes this path.
Smart devices with weak security can be used to reach your family's personal devices if they share the same network.
Setting Up a Separate IoT Network
Most modern routers support a guest network feature. Create a dedicated guest network for all your smart home devices — lights, speakers, cameras, and connected appliances. Keep your family's phones, laptops, and tablets on your main network. This way, even if a smart device is compromised, it cannot communicate with your personal devices. Name the IoT network something you will recognise but that does not identify your household.
Use your router's guest network feature to create a dedicated network for smart devices, separate from personal devices.
Securing Individual Smart Devices
Even on an isolated network, each smart device should be secured individually. Change default passwords on every device. Disable features you do not use, such as remote access on cameras or voice purchasing on smart speakers. Keep firmware updated — set devices to auto-update where possible. Check the manufacturer's privacy policy to understand what data is collected.
Change default passwords, disable unnecessary features, and keep firmware updated on every smart device.
Ongoing Monitoring and Maintenance
Periodically review which devices are connected to each of your networks. Remove any devices you no longer use. Check for firmware updates quarterly if auto-update is not available. If a manufacturer stops supporting a device with updates, consider replacing it — an unsupported device is a permanent security risk on your network.
Regularly audit connected devices and retire any that are no longer receiving security updates from the manufacturer.
This is practical educational content to support families. For case-specific concerns about a child's safety, contact the NSPCC helpline on 0808 800 5000 or your local safeguarding team.
Frequently Asked Questions
Related Resources
Was this page helpful?
Last reviewed: 2026-03-30