This Article corrects a misconception in corporation law – the belief that principles of tort law do not apply to the liability scheme of fiduciary duty. A board’s duty of care implies exposure to liability, but the business judgment rule precludes it. Tort law finds fault; corporation law excuses it. The conventional wisdom says that the tort analogy fails. This dismissal of tort prinicples is wrong. Although shareholder derivative suits and ordinary tort cases properly yield systemically antipodal outcomes, they are bound by a common analytical framework. The principles of board liability are rooted in tort doctrines governing duty, customs, and pure economic loss. Properly applied, they produce a duty “to care” (vis-à-vis duty of care), ...