BLE passkey levels

BLE passkey levelshttps://devzone.nordicsemi.com/f/nordic-q-a/17801/ble-passkey-levelsHi All, I am working on nRF51822, i have questions about BLE passkey security: 1- The pass key is for GAP or GATT services? 2- The BLE have few layers of data: Profile->Service->attribute, in which level can i set passkey? 3- Can i set differenten-USTelligent Community 13Thu, 17 Nov 2016 08:53:26 GMTRE: BLE passkey levelshttps://devzone.nordicsemi.com/thread/68619?ContentTypeID=1Thu, 17 Nov 2016 08:53:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1fa830c6-af83-44aa-a1f1-964ca2c9c0e2Petter Myhre<p>I hope <a href="https://devzone.nordicsemi.com/question/84957/protecting-write-characteristic-best-option/">this</a> answers 1+2, if not please add a comment. On 3. the answer is no.</p><div style="clear:both;"></div>