https://devzone.nordicsemi.com/f/nordic-q-a/33976/connection-happens-without-entering-static-passkey-tooHello, I am using sdk12.2.2 and nrf52 customized board. I want that user should be prompted to enter passkey before bonding. I refereed the code snippet from devzone and was able to implement static passkey but my challenge is that even without enteringen-USTelligent Community 13Wed, 02 May 2018 12:53:21 GMThttps://devzone.nordicsemi.com/thread/130554?ContentTypeID=1Wed, 02 May 2018 12:53:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:85aeb5e4-41fe-4066-825f-ffcec67ff576run_ar<p>Did you update attr_md for your characteristic to require MITM before allowing a peer to read/write to it. Tutorial here: <a href="https://devzone.nordicsemi.com/tutorials/b/bluetooth-low-energy/posts/ble-characteristics-a-beginners-tutorial">https://devzone.nordicsemi.com/tutorials/b/bluetooth-low-energy/posts/ble-characteristics-a-beginners-tutorial</a></p><div style="clear:both;"></div>