Governance

Anchor Essay

Defensibility — Advanta's Operating Framework for Legal AI

Defensibility is Advanta's operating framework for AI use in legal functions. It is the practical answer to one question: when a regulator, plaintiff, board member, client, or professional conduct body challenges an AI-influenced decision, can the legal function produce, within twenty-four hours, the contemporaneous evidence, the methodology, the governance trail, and the named accountability chain that the decision rests on? Five elements constitute Defensibility: decision traceability, methodology transparency, evidence framework, governance posture, and continuous learning. Defensibility is the legal-specific lens that translates ISO/IEC 42001 management-system requirements and EU AI Act high-risk obligations into the daily operating cadence of a legal department. The Defensibility Posture Statement is the one-page artefact that captures the function's posture, signed by the General Counsel, and producible within twenty-four hours of any external request that could plausibly result in adversarial scrutiny.