---
title: "GEO/AEO Five-Layer Taxonomy: Cycle 6→7 Transition — Cross-Layer Chains Confirmed, TAM Corrected to $3–4B"
date: 2026-04-20
quantum_uid: "2026-04-20-geo-aeo-five-layer-cycle7-transition"
excerpt: "Cycle 6 established two new CVEs in the MCP attack surface (CVSS 9.4 RCE, Full-Schema Poisoning) and the first Chinese super-app GEO procurement contract. A four-agent adversarial sweep following Cycle 6 confirms the taxonomy architecture is structurally sound with two required revisions: attack layers operate as cross-layer pipelines, not silos; and the widely cited $1.09B TAM excludes Chinese domestic GEO spend (¥9B+ combined), pushing the real 2026 figure to $3–4B."
---

# GEO/AEO Five-Layer Taxonomy: Cycle 6→7 Transition — Cross-Layer Chains Confirmed, TAM Corrected to $3–4B

*Four-agent adversarial sweep validates the taxonomy architecture and surfaces two structural revisions: attack layers are pipelines not silos, and the $1.09B TAM omits Chinese domestic spend entirely*

**Date**: 2026-04-20  
**Cluster**: Agent-SEO & GEO

## Summary

Cycle 6 established two new CVEs in the MCP attack surface (CVSS 9.4 RCE, Full-Schema Poisoning) and the first Chinese super-app GEO procurement contract. A four-agent adversarial sweep following Cycle 6 confirms the taxonomy architecture is structurally sound with two required revisions: attack layers operate as cross-layer pipelines, not silos; and the widely cited $1.09B TAM excludes Chinese domestic GEO spend (¥9B+ combined), pushing the real 2026 figure to $3–4B.