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Apr 2, 2026 · Mobile Development

HarmonyOS 6: Building Controllable Request Interception for AI Apps Amid Trust Crisis

Triggered by the APIfox supply-chain attack, this article details HarmonyOS 6's three-layer request interception (onLoadIntercept, onInterceptRequest, WebSchemeHandler) with code examples for whitelist enforcement, resource substitution, audit logging, and AI-specific filters against prompt injection and data leakage.