Cisco to Add Claude Mythos to AI Defense for Controlled Red Teaming

Cisco announced on November 9, 2026 that it will add Anthropic’s Claude Mythos to AI Defense’s adaptive red-teaming framework for testing AI applications and agents. The announcement at Cisco Live APJC in Melbourne also introduced Splunk agent-observability updates and Cisco IQ integrations, extending the release beyond testing into agent-cost evaluation and infrastructure remediation.

Customers will not be able to prompt Claude Mythos freely. Instead, the model will operate within a fixed job with a registered target and human-defined objectives, supplying reasoning for test planning and attack ideation while AI Defense conducts the engagement.

Red Teaming Stays Inside Authorized Boundaries

A Cisco technical overview distinguishes standard and adaptive testing. Standard red teaming checks common risks such as prompt injection, jailbreaks, sensitive-data exposure and harmful content across thousands of categories, content types and adversarial…