@nelson There's a news story about "undocumented backdoor found in Bluetooth chip used by a billion devices" which turns out to be bunch of undocumented debugging commands accessible over HCI interface as implemented by the binary blob that's used to interface with ESP32's Bluetooth peripheral.

Which is a bad news for you if you exposed that HCI interface into untrusted contexts for some reason, I guess? Otherwise this development is actually empowering the users.