No-name developers often blatantly rip off aspects of popular games like their names and app icons off, misleading people who don't know better to install them. Of Fortnite's 125 million and growing userbase, many of them young teens, how many of them will cautious and security conscious enough to turn the security settings back on? Perhaps the developer intends to profit from the first early wave of adopters, which will be massive given the time users have waited for the game to arrive on Android. On top of that, only owners of certain Samsung smartphones were able to play the game at launch.
Unlike on iOS where Apple completely controls where you get your apps i.e the App Store, on Android devices users can choose to get their apps from anywhere they want.
Malware could infect Android users looking to play Fortnite in a myriad of ways.
If more developers follow Epic's path, then the road to unauthorized and potentially harmful downloads on Android devices will only widen. Malware can also come bundled with the actual official Android version of the game downloaded from an unofficial third-party. So now when you will search for the keywords such as "Fortnite", "Fortnite Mobile" or "Fortnite Battle Royal" on Google Play app on Android, it'll show you a message - "Fortnite Battle Royal by Epic Games, Inc is not available on Google Play".