Multi-turn attacks broke AI models 88% of the time — single-turn testing missed it, Cisco AI security lead warns at VB Transform 2026

When Cisco ran 6,986 multi-turn attacks against 15 flagship models , attackers who adapted across the conversation broke through as often as 88.3% of the time. Amy Chang, Cisco’s head of AI threat intelligence and security research, brought that finding to the agentic security panel at VB Transform 2026 ; the number should worry anyone still running single-turn red-teaming programs. VentureBeat’s June 2026 Pulse survey of 107 enterprise respondents explains why the room was full.