
Protect AI
AI security platform: LLM firewall, model scanning and red teaming, now part of Palo Alto Networks.
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About Protect AI
Protect AI sells a set of AI security products: Layer (an LLM runtime firewall for prompt injection and data leakage), Guardian (scanning model files for malicious code), Recon (automated red teaming) and Radar (AI asset inventory). Palo Alto Networks acquired it in 2025. It also maintains the open source LLM Guard and ModelScan tools.
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