How to Perform a Comprehensive Smart Home Security Checkup

Step by step

1. 2 min

   Inventory connected devices

   Open your router’s administrative interface via a web browser using its IP address. Navigate to the connected device list or DHCP client table to identify every active device on the network. Remove any unrecognized hardware or devices no longer in use to reduce your attack surface.

   Note: Cross-reference this list with your smart home apps to ensure no phantom devices remain active.
2. 3 min

   Verify firmware versions

   Launch the management app for each smart device brand. Navigate to Settings > Firmware or About Device and verify that every unit is running the latest software version. Enable 'Automatic Updates' for every device to ensure ongoing security patches are installed immediately upon release.

   Note: If a device no longer receives firmware updates, isolate it on a guest network or decommission it.
3. 2 min

   Enforce multi-factor authentication

   Access the account settings in your primary smart home platforms, including Apple Home, Google Home, or Amazon Alexa. Locate the Security or Login section and ensure Multi-Factor Authentication (MFA) is enabled using an authenticator app rather than SMS. This prevents unauthorized access even if your primary password is compromised.

   Note: Use a dedicated hardware security key for your primary home control hub if supported.
4. 4 min

   Segregate smart devices

   Access your router’s wireless settings and create a dedicated Guest Network specifically for IoT devices. Move all smart bulbs, plugs, and sensors to this isolated network to prevent them from communicating with your main computers or storage drives. Ensure the IoT network utilizes WPA3 or WPA2-AES encryption.

   Note: Enabling 'Client Isolation' on the IoT network prevents devices from interacting with each other, further containing potential compromises.
5. 2 min

   Audit third-party integrations

   Review the linked account settings within your IFTTT, Home Assistant, or voice assistant dashboards. Revoke permissions for any cloud services or third-party applications you no longer actively use. Limiting these 'Connected Apps' prevents secondary data leakage from older, unmonitored accounts.

   Note: Regularly audit these permissions every six months.
6. 1 min

   Change local administrative passwords

   Ensure all smart devices that offer a web-based local management interface are protected by a unique, high-entropy password. Never use default manufacturer credentials. Store these credentials in a secure, encrypted password manager to maintain absolute administrative control.

   Note: Use at least 16 characters for administrative passwords.