
James Nettesheim
CISO & Head of Enterprise Technology at Block, experienced in incident response and detection engineering, and lead on Block's work building the Goose agent and co-designing the Model Context Protocol with Anthropic.
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Feb 10, 2026 • 34min
Block's CISO James Nettesheim on How 40% of Their Detections Are Now Written with AI
James Nettesheim, CISO & Head of Enterprise Technology at Block, a detection engineering and incident response leader who co-built Goose and helped design the Model Context Protocol. He discusses building Goose and MCP, hardening agents against prompt injection, democratizing detection writing with natural language, Binary Intelligent Triage with 99.9% accuracy, and principled, data-safety driven AI rollouts.


