> And who controls these notifications and forces application developers to use a specific service?

Am I alone in being alarmed by this? Are they admitting that their app sandboxing is so weak that a malicious app can exfil data from other unaffiliated apps? And they must instead rely on centralized control to disable those apps after the crime? So.. what’s the point of the sandboxing - if this is just desktop level lack of isolation?

Glossing over this ”detail” is not confidence inspiring. Either it’s a social engineering attack, in which case an app should have no meaningful advantage over traditional comms like web/email/social media impersonation. Or, it’s an issue of exploits not being patched properly, in which case it’s Google and/or vendor responsibility to push fixes quickly before mass malware distribution.

The only legit point for Google, to me, is apps that require very sensitive privileges, like packet inspection or OS control. You could make an argument that some special apps probably could benefit from verification or special approvals. But every random app?