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Can you bypass a deterministic prompt-injection firewall? (<0.1ms latency benchmark & red-team challenge)

Most prompt-injection guardrails rely on secondary LLM calls that add 500ms+ of latency and frequently get tricked by recursive jailbreaks. I built a deterministic heuristic firewall (CanaryGuard) that screens prompt inputs in To test how robust deterministic rules actually are against modern jailb…

Read the full story at r/PromptEngineering ↗

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  1. 2026-10-18 04:25 · r/PromptEngineering
    Can you bypass a deterministic prompt-injection firewall? (<0.1ms latency benchmark & red-team challenge)

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