https://devzone.nordicsemi.com/f/nordic-q-a/74316/ble-nfc---mitmHi, I&#39;m using nrf52840 with an application which supports both BLE connections with mobile and PC via NFC pad. the file nfc_ble_pair_lib contains the function pm_secure_mode_set. I&#39;m working with NFC_PAIRING_LESC_OOB mode. By default, in thisen-USTelligent Community 13Mon, 26 Apr 2021 06:26:31 GMThttps://devzone.nordicsemi.com/thread/306679?ContentTypeID=1Mon, 26 Apr 2021 06:26:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:019f8777-d66b-4380-be38-95558f1ada97Carl Richard<p>My pleasure!<br /><br />Best regards,<br />Carl Richard</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/306640?ContentTypeID=1Sat, 24 Apr 2021 20:59:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9836449b-8bb6-477b-a78b-bd059ad1df2cRoei<p>Thanks!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/306355?ContentTypeID=1Thu, 22 Apr 2021 13:19:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b5f1de05-3b7b-4232-be95-bee6b30dff5eCarl Richard<p>Hello!<br /><br />When using&nbsp;<span>NFC_PAIRING_LESC_OOB&nbsp;it should be fine to set m_sec_param.mitm to 1.&nbsp;<br /><br />Best regards,<br />Carl Richard</span></p><div style="clear:both;"></div>