Matter is an open, IP based standard from the Connectivity Standards Alliance that lets smart home devices and systems from different makers work with one another. It runs on Wi-Fi and Thread, and Bluetooth Low Energy is used to commission new devices.
The problem it tries to solve
Before Matter, a smart bulb from one brand often needed its own hub or app, and mixing brands meant gluing systems together. Matter describes itself as one protocol to connect compatible devices and systems. The Alliance says it was developed with an open source approach, and it presents certification as a seal of approval for devices that meet the standard.
What it runs on
The Alliance's Matter page says the first specification release runs on Wi-Fi and Thread network layers and uses Bluetooth Low Energy for commissioning. Its 2022 security paper describes Matter as built on IP and working over IP based networking technologies, starting with Thread, Wi-Fi and Ethernet. The two descriptions differ in detail, so check the current specification if the transport matters to your product.
Wi-Fi is the network most homes already have. Thread is a separate network layer that devices join through a Thread border router, which we explain in another post.
Local control
The Alliance lists consistent and responsive local connectivity as a reliability benefit. In plain terms, a Matter light switch should be able to talk to a Matter bulb over your home network without sending the command to a distant server first. How well that works in practice depends on the products and the controller you use.
Security is part of the design
The 2022 paper lists layers: authentication and attestation when a device is added, protection of every message, and secure over the air firmware updates. It says Matter does not rely on the security of the radio technology underneath. We cover attestation and its limits in a separate post.
What Matter does not do
Matter is a protocol, not a guarantee about the whole product. A Matter bulb can still have a weak companion app, a poor privacy policy, or a maker that stops shipping updates. Matter does not replace the need to check the support end date, set strong passwords on related accounts, and keep controllers updated.
How to use it as a buyer
- Treat the Matter logo as evidence of interoperability and a defined security baseline, not as a reason to skip other checks.
- Check the maker's published update period.
- Keep the controller, such as your phone or hub, updated, because it holds the keys to every device it manages.
Quick check
Does Matter need an internet connection?
The Alliance highlights local connectivity as a feature. Individual products may still use cloud services for remote access or extra features.
Is Matter a replacement for Wi-Fi?
No. Matter sits on top of networks such as Wi-Fi and Thread and defines how devices talk to each other over them.
Sources
Last reviewed: 19 October 2026.
