Google will implement Android developer verification on September 30, 2026, in Brazil, Indonesia, Singapore, and Thailand. Certified Android devices will block installations of apps from unverified developers, affecting both Google Play and major device-maker app stores. Starting June 2026, the Android Developer Verifier will ensure apps are associated with verified developers before installation. Unregistered apps will not install via standard methods post-September 30 but can be sideloaded through a complex process. Developer registration began in March, requiring legal identification and app ownership verification. Google aims to combat malware with this initiative, which has faced backlash from open-source advocates like F-Droid and the Keep Android Open campaign. The global rollout is set for 2027, with ongoing concerns about appeals processes and the impact on pseudonymous developers.