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Securing smart home devices: cameras, speakers and the rest
Smart cameras, speakers and doorbells are small computers on your network – and often the weakest link. A few steps make your smart home safe.
Smart speakers, cameras, plugs and doorbells make daily life easier – but every one of them is a small computer that is online all the time. That is exactly why they are a popular target. A few ground rules keep your smart home safe.
The short version
- Change the default passwords on every device and app right away.
- Turn on automatic updates everywhere.
- Put smart devices on a separate guest or IoT network.
- Use remote access only when you need it, and with two-factor authentication.
- Switch off features you do not use, such as microphones or cloud storage.
Step by step
Covered in 20 minutes
- Change passwords: replace the factory passwords on all devices and apps with strong, unique ones.
- Turn on updates: switch on automatic firmware updates in each manufacturer’s app.
- Separate the network: move smart home devices to the guest or IoT Wi-Fi.
- Review remote access: turn it on only if you need it, and protect it with two-factor authentication.
- Reduce features: switch off microphones, cameras and cloud storage you do not use.
1. Default passwords are the biggest gap
Many devices arrive with passwords like “admin” or “1234” – and attackers have those lists. On every new device, change the default password immediately, both on the device and in its app. Use a unique password for each one from your password manager .
2. Updates keep the firmware sound
IoT devices get updates less often than a phone or computer – but when they do, those updates often close serious holes. Turn on automatic firmware updates in the app, and retire devices the manufacturer no longer supports at all.
3. Separating the network protects everything else
Put smart devices on a separate Wi-Fi network – many routers offer a guest network for exactly this. Then a hijacked camera cannot simply reach your laptop or your phone. How to secure the home network in general is in secure your home Wi-Fi and secure your router .
4. Choose remote access and features deliberately
Do you really need to reach that camera while you are out? Turn remote access on only when you need it, and protect the manufacturer account with two-factor authentication . Switch off microphones, cameras or cloud storage you do not use – what is off cannot be misused.
Common mistakes
- Keeping the default password because “the device is inside my house anyway”.
- Running every device on the main network alongside your computer and phone.
- Leaving remote access permanently open with no two-factor protection.
- Ignoring updates, or keeping ancient devices with no manufacturer support in service.
- Leaving cameras and microphones on when they are never used.
Frequently asked questions
Why are smart devices a security risk?
Many of them ship with weak default passwords, rarely get updates and are online all the time. A hijacked device can be a way into your home network or become part of a botnet. Your own password, updates and a separate network reduce that risk a lot.
Do I need a separate password for every smart device?
Yes. Use a unique, strong password for each device and each manufacturer app, ideally from a password manager. Then a leak affects one account instead of your whole smart home.
Do smart devices really need their own guest network?
It is worth doing. If your camera and doorbell sit on the same network as your laptop, a hijacked device can reach your important machines more easily. A separate guest or IoT network keeps them apart.
Topics: Devices