Might be, but I meant the wearables' stacks. Fundamentally Apple can't ensure much more than a vaguely transport encrypted connection to such a peripheral.
Apple can't (trivially) detect if there's a fatal flaw in the way the other side derives their secrets for example. They can't know if the device doesn't have a backdoor characteristic/API that gives access to the key material. They can't know if that proprietary stack can't be exploited in n+1 ways because it has been written by an underpaid intern.
But if Apple gave access to everything over BLE they would be expected to. At least by most Apple users. Be it a good or a bad thing. It's a rather enormous access vector, if they'd provide feature parity(-ish) with Watch.
Much more sensible would be to make such features available to apps (and by proxy, wearables) with entitlements. But even then it can be just as insecure, just by proxy.
Apple can't (trivially) detect if there's a fatal flaw in the way the other side derives their secrets for example. They can't know if the device doesn't have a backdoor characteristic/API that gives access to the key material. They can't know if that proprietary stack can't be exploited in n+1 ways because it has been written by an underpaid intern.
But if Apple gave access to everything over BLE they would be expected to. At least by most Apple users. Be it a good or a bad thing. It's a rather enormous access vector, if they'd provide feature parity(-ish) with Watch.
Much more sensible would be to make such features available to apps (and by proxy, wearables) with entitlements. But even then it can be just as insecure, just by proxy.