Three Lines of Defense

nounverified·updated May 18, 2026

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Most financial institutions follow a three-lines-of-defense model, which separates front line groups, which are generally accountable for business risks (the First Line), from other risk oversight and independent challenge groups (the Second Line) and assurance (the Third Line)

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§1: Most financial institutions follow a three-lines-of-defense model, which separates front line groups, which are generally accountable for business risks (the First Line), from other risk oversight and independent challenge groups (the Second Line) and assurance (the Third Line)