https://devzone.nordicsemi.com/f/nordic-q-a/121360/limiting-access-via-bluetoothI have a greenfield project that I am currently working on and I am trying to work out the best approach to limiting access/features via Bluetooth. In the past we have used Just Works, anyone can connect and do anything they like. We had a way of settingen-USTelligent Community 13Mon, 12 May 2025 13:39:01 GMThttps://devzone.nordicsemi.com/thread/534918?ContentTypeID=1Mon, 12 May 2025 13:39:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4fa4956a-da2d-4343-ae1d-ac1e547d2322Einar Thorsrud<p>Hi,</p> <p>Pairing/bonding is done on a per device basis to secure the link between the two pairs. From what I understand, you need a way for the nRF device to know that it is communicating with a device tha had your app? If so, perhaps the pairing (just owrks or a higher level) should be used only for securign the link, and then you additionally have an extra application specific authentication method (some form of challenge-response mechanism, perhaps)? This could be implemented in the application layer, independent of the Bluetooth stack.</p><div style="clear:both;"></div>