How to Keep Your Smart Home Devices Secure

Smart home devices bring a lot of convenience, voice-activated lights, door sensors, remote heating, and much more. But as your home becomes more connected, it also becomes a potential target for hackers or data snoops. So, just how secure are smart home devices? And what can you do to make them safer?

Are Smart Home Devices Secure?

In general, most branded smart home devices are reasonably secure, especially from well-known brands. However, no device is completely risk-free—particularly when it relies on the internet or third-party cloud services. The more devices you add, the more entry points you introduce into your network.

The level of security depends on:

• The brand and manufacturer
• How well the firmware (device software) is maintained
• Whether you have changed default settings
• The strength of your home network security

Common Vulnerabilities in Smart Homes

Here are the most common weaknesses found in smart home setups:

• Weak or Default Passwords
  Some devices come with default login credentials like “admin” or “1234”—and hackers know them.
• Unencrypted Data Transmission
  Cheaper devices may transmit data (including video or commands) without encryption, making it easier to intercept.
• Infrequent Firmware Updates
  Devices that don’t get regular software updates may have known bugs or vulnerabilities that never get fixed.
• Insecure Mobile Apps
  Companion apps can be a weak link if they have poor security or excessive permissions.
• Cloud Dependency
  Devices that rely on external servers on the internet are at risk if that server is compromised or shut down unexpectedly.
• Local Network Exposure
  If your home Wi-Fi is weakly protected, an intruder can gain access to all devices on the same network.
• Poor Manufacturer Practices
  Some brands may collect more data than necessary or lack basic security protocols.

How to Secure Your Smart Home: Practical Tips

You don’t need to be an IT expert to protect your smart home. Here’s what you can do:

1. Use Strong, Unique Passwords

Never use default passwords. Use a password manager, like the free Bitwarden password manager, to generate and store strong credentials for each device and app.

2. Enable Two-Factor Authentication (2FA)

If your smart platform or app offers 2FA, turn it on. It adds a crucial layer of protection.

3. Keep Firmware and Apps Updated

Regularly check for updates on both devices and mobile apps. Updates often patch known security flaws.

4. Secure Your Wi-Fi Network

Use WPA3 encryption if your router supports it (WPA2 at minimum). Set a strong router password and consider changing the default SSID (network name). Disable remote management features unless you truly need them.

5. Use a Guest Network for Smart Devices

Isolate your smart home devices on a separate Wi-Fi network to limit potential problems if one is compromised. Most routers have the option of enabling a Guest WiFi network which is separate to your main WiFi network.

6. Be Selective With Devices

Avoid no-name or super-cheap devices that do not disclose how they handle updates or data. Go brands like YoLink and Moes which have a reputation to maintain.

7. Review App Permissions

Check what data the app is collecting (location, camera, microphone, etc.). Only allow access when absolutely necessary.

8. Consider Local Control

Platforms like Home Assistant, Hubitat, or Homey let you control devices locally, avoiding the cloud. Local control reduces exposure to external attacks and keeps your data private.

Final Thoughts

Smart home devices can are generally pretty secure—as long as you take an active role in managing that security. By following a few best practices, you can enjoy all the benefits of a smart home without leaving the digital front door wide open.