![]() Here are some tips how to make sure this system is still secure. Nobody wants to install an home automation system anymore that is not somehow connected to a network. However, modern installations aren’t standalone. This means that for a residential installation, cabled KNX installations are perfectly fine, if they are running standalone. Even without home automation, a person that has physical access to a light switch can turn it on and off. But this means, this person is already in your flat. ![]() Luckily, there is one good thing about KNX: You need access to the bus. If somebody has physical access to your bus, he can do crazy things. If you have access to the KNX bus, you can do everything. All devices communicate on a shared medium, there is no encryption, no authentication, no authorisation. If these modern architectures already show a lot of problems, what about KNX? Let’s make it quick: from an computer security point of view, KNX is not just insecure, but the worst kind of protocol. These may or may not been fixed in the future. ![]() Looking at modern home automation communication technologies (like Z-Wave or Zigbee), it seems that most of them have some security issues. ![]() Be part of the KNX Community and enjoy all its benefits: One standard (ISO/IEC 14543), One software tool for commissioning.
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