https://devzone.nordicsemi.com/f/nordic-q-a/14489/master-emulator-firmware-has-no-mitmI&#39;m using Master Control Panel for PC to try to test bonding with MITM security on the peripheral I&#39;m developing, and I suspect there&#39;s something wrong with the Master Emulator device that MCP is controlling. When I sniff the packets between the Masteren-USTelligent Community 13Wed, 22 Jun 2016 23:43:49 GMThttps://devzone.nordicsemi.com/thread/55313?ContentTypeID=1Wed, 22 Jun 2016 23:43:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f3059098-939a-4a30-b485-5749d6e7277cElias<p>Although this didn&#39;t directly answer my question, recommending nRF Connect made it moot.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/55312?ContentTypeID=1Wed, 15 Jun 2016 10:55:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:603f864a-0a5b-4eb3-80ad-44e2573ffadeFormerMember<p>Instead of using Master Control Panel, I would recommend you to use the newly released <a href="https://devzone.nordicsemi.com/blogs/922/nrf-connect-v10-release-candidate/">nRF Connect (PC)</a>. It is a new and more advanced version of Master Control Panel. If initiating bonding, you can for instance choose MITM or no MITM.</p> <p>In Master Control Panel (PC) you can change the IO capabilities in for the Master Control Panel device in File -&gt; Options -&gt; Security. When the correct IO capabilities are set, there should be MITM bonding the peripheral requires it. Remember to set correct IO capabilities in the peripheral code as well.</p> <p>Table 2.8 in the Bluetooth Core Specification v.4.2, vol 3, part H, chapter 2.3.5.1 shows which IO capabilities that result in which type of bonding:</p> <p><img src="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/mitm.PNG" alt="image description" /></p><div style="clear:both;"></div>