# Audio Prompt Injection: What Voice Agents Hear That Text Guardrails Miss

> Source: <https://blog.checkpoint.com/ai-security/audio-guardrails-voice-agents/>
> Published: 2026-10-29 13:00:13+00:00

Key takeaways Only 24 percent of organizations can fully inspect AI traffic without impacting performance, according to Check Point’s 2026 Cloud Security Report. →Voice agents are easy to talk into things. Researchers got a leading realtime voice model to give harmful answers to about 70 percent of spoken requests by varying their speed, pitch and background noise →A transcript check can be blinded. An attacker can speak the instruction and tamper with the recording, so the transcript shows garbled words or nothing at all while the model still receives the original audio →Audio guardrails screen the sound itself. They check […]

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