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From: "Carlos E.R." <robin_listas@es.invalid>
Newsgroups: comp.mobile.android
Subject: Re: Does Android scan every app you install or only apps installed
 from the Google Play Store?
Date: Mon, 3 Jun 2024 15:34:05 +0200
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On 2024-06-03 14:11, Arno Welzel wrote:
> Wolf Greenblatt, 2024-06-02 23:13:
> 
>> By default, does Android scan every app you install for malware,
>> or does Android only scan apps installed from the Google Play Store?
> 
> That also depends on the device as well since some manufactures modify
> the official version of Android to their needs and some provide their
> own security solutions like Xiaomi.
> 
> However, by default Android will scan every app regardless where it came
> from.
> 
> Also see: Settings -> Security & privacy -> App security -> Play protect
> and the the "Play Protect settings" you can open with the settings icon
> on the top right. In these settings there is also the following option,
> which is enabled by default:
> 
> Improve harmful app detection
> Send unknown apps to Google for better detection
> 
> And "unknown apps" means apps which you did not install using Google
> Play but by using an APK file or alternative sources like F-Droid.

I assume that applications on the google play server are scanned "by the 
server", in advance, and other applications are scanned later, dunno if 
locally or after they are uploaded for scan at the server. Oh, rather 
the later: it says "Send unknown apps to Google for better detection"

-- 
Cheers, Carlos.