The "MEX" Layer: Inside WhatsApp's EU DMA...

Source: Decompiled GraphQL operation manifests from WhatsApp Android version 2.26.3.79. All operation names and structures are as observed in the client codebase. WhatsApp is undergoing the most significant architectural shift in its history — and most of it is invisible to users. Hidden inside recent Android builds is a higher-trust GraphQL schema called whatsapp_mex. MEX stands for Meta Experience, and it's where the platform's most regulated, security-sensitive operations live: EU Digital Mar