Hello Freddie! HomeKit technology provides advanced security with end-to-end encryption and authentication between Eve and your iPhone, iPad, or iPod touch. Your data is stored fully encrypted and can not be accessed by Eve Systems, Apple, or any other third party. Therefore the setup code provided is available only to you and no-one else and non-retrievable. The HomeKit code is on a sticker on the accessory and in the quick start guide.
I run a text file with all my HomeKit enabled accessories and their HomeKit code. Best regards, Volker
Feb 13, 2021