[v4n4d1s]

Yes, I'm fully aware of this. There's also the problem of having a closed source baseband processor in pretty much every device.

But bypassing these mechanisms is a decision they had to make. If they're just lazy or incompetent, these userspace apps should be sufficient as a mitigation.

Check this out for a more sophisticated way: https://privacyinternational.org/node/2732