SMRTR ProgrammingOct 22, 2025Daily.dev

When Prompt Injection Gets Real: Use GraphQL Federation to Contain It

SMRTR summary

Prompt injection attacks have exploited a critical gap in AI systems: security controls designed for humans fail when applied to large language models that execute untrusted instructions hidden in data. WunderGraph Cosmo uses GraphQL federation to create runtime boundaries through persisted operations, scoped access, and signed configurations, containing AI behavior within predefined trust zones rather than trying to predict every malicious prompt.

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