Massachusetts health notifications app installed without users’ knowledge
Most of the comments on that app as well as here are probably wrong. I'd suspect that everyone who had the app "installed without their permission" opted into the Android COVID-19 Exposure Notification program. This was deployed by Google as part of an update to Google Play Services.When you go to your phone's settings with this update, there's an option to enable COVID-19 Exposure Notifications. When you turn it on, it prompts you for your location and will download your region's app that uses your phone's new capabilities to connect to the appropriate health authorities.Massachusetts just opted into this program in the last couple of weeks. I'm honestly not sure why they did it so late - this would have been helpful earlier. Apple iPhones also have this capability, including interoperability with Android phones, and iPhone users in Massachusetts are also able to turn on this setting.Now, if someone can actually prove that they didn't opt into the COVID-19 Exposure Notifications, then I'd be concerned. But my guess is they opted in when it came out, but there was no app for their region, so nothing was downloaded and the feature did nothing. Then, Massachusetts rolled out the app now and lots of people who configured their phones earlier in the pandemic got a new app. They granted permission for it, perhaps months ago.