Silent installation on Android devices

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I think the clue is pretty much in this statement I found here in the FAQ.

The fast web install worked for me yesterday, but it doesn’t work anymore today. What’s wrong?

The permission to install apps directly on your phone needs to be refreshed once every few days. Go back to the “Fast Web Install” app on your phone and click the button to give us the permission again. We are working on a future update that will optionally automatically refresh this setting.

I presume this is very similar to what Google does in the kill switch. I am assuming that the kill switch is an application on my device, just hidden from me. When Google wants to remove an application, it silently uninstalls it without asking for our permission. I am very sure this security hole is of their making. Now we just need to figure that out… =D

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