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Security Research Jun 02, 2026 6 min read

Preventing Prompt Injection in Production: Heuristics vs ML

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Dr. Evelyn Chen

Zertru Team

Prompt injection is one of the most persistent threats in modern AI applications. While heuristics and regex filters can catch obvious attack patterns, they struggle with obfuscated payloads. In this post, we discuss the advantages of using low-latency ML models that run alongside your LLM traffic to classify and reject malicious prompts before they reach the foundation model...

Note: This is a preview excerpt. The full article content will be available shortly as our engineering team finalizes the technical deep dive.