Google will make it harder to sideload apps starting next year.

Google says you should think of the new requirements like checking IDs at the airport.
Google, August 2025
Google is introducing a new verification process for Android developers, similar to an ID check at an airport. This confirms the developer's identity without reviewing the app's content or origin.
The primary goal is to combat convincing fake apps, like malicious apps impersonating official banking apps. Google reports that sideloaded apps are 50 times more likely to contain malware. Implementing similar verification for Google Play apps has reduced malware and fraud.
Developers can still distribute apps via sideloading or alternative app stores but must verify their identity through a new Android Developer Console. Once verified, they must register their apps' package names and keys for installation on certified Android devices (those with Google services). This measure won't affect non-Google Android versions, typically only found in China.
Testing begins with early access in October. In March 2026, the console will be available to all developers for verification. The feature will launch in Brazil, Indonesia, Singapore, and Thailand in September 2026, with a global expansion planned for 2027 and beyond.
This move resembles Apple's Developer ID and Gatekeeper on macOS, offering similar security. Given the ease of malware distribution on Android, it could be a positive step. However, it might also be viewed as an unnecessary lockdown of Android.
In other news, "Iconic Phones: Revolution at Your Fingertips," a coffee table book chronicling the 21st century's tech revolution, will be released in a few months.