How do I set up a smart speaker or smart home device safely?

Getting the convenience while limiting what is recorded, who can control it, and what happens if it is compromised.

Difficulty: beginner
Time: 45 min
Read: 2 min

Short answer

Change any default password, put smart devices on a guest network separate from your computers, and review the privacy settings — particularly voice recording retention and whether purchases can be made by voice.

Smart home devices are computers with microphones and network access, often from manufacturers who stop issuing updates quickly. The sensible approach is to keep them functional but isolated from anything that matters.

What you'll need

Router access
The device's app (optional)

Step by step

Change any default password immediately.Default credentials for common devices are published and scanned for constantly. This is the single most important step for cameras and hubs.
Put smart devices on a separate guest network.Most routers support this. It means a compromised device cannot reach your computers, phones or network storage.
Review the voice recording settings.Most assistants keep recordings by default. You can usually turn that off or set automatic deletion, and it is worth doing at setup.
Turn off voice purchasing, or require a code.It prevents both accidental and deliberate orders by anyone in earshot, including children and visitors.
Use the physical microphone mute when you want it.Most speakers have a hardware mute button, which is more trustworthy than a software setting.
Think about where you put it.Not in a bedroom or an office where confidential conversations happen, if that matters to you. Cameras especially need deliberate placement.
Check the manufacturer still issues updates.Cheap devices are frequently abandoned. An unpatched internet-connected device is a genuine liability rather than an inconvenience.
Set up voice recognition for individual users if available.It limits who can access personal information such as calendars and messages through the device.

Tips

Review what the device has recorded occasionally. Most services have a history page, and it is usually informative about how often it activates unintentionally.
Avoid very cheap unbranded cameras and hubs. Security and update support are where the cost has been saved.
When you dispose of a smart device, factory reset it and remove it from your account. It otherwise remains linked and potentially accessible.

Common mistakes

Leaving default passwords in place — Default credentials are published and actively scanned for. It is the most common way these devices are compromised.
Putting smart devices on the main network — A compromised device can then reach computers, phones and storage. A guest network isolates it at no cost.
Never checking for firmware updates — These devices are rarely set to update automatically, and an unpatched device stays vulnerable indefinitely.

Questions people ask

Are smart speakers always listening?

They listen locally for the wake word, and normally only transmit after it. But false activations happen regularly, and most services keep recordings unless you turn that off.

Should smart devices be on a separate network?

Yes, where your router supports it. A guest network keeps a compromised device from reaching your computers, phones and storage, and it costs nothing to set up.