Caremark Cases refer to a series of legal decisions stemming from the 1996 In re Caremark International Inc. Derivative Litigation. These cases established that corporate boards have a fiduciary duty to implement and oversee effective information and reporting systems. In the context of cybersecurity, Caremark Cases are significant because they clarify that boards can be held liable if they ignore or inadequately address significant risks, such as data breaches or cyber threats, that are reported to them. The rulings emphasize that a board’s failure to act on known risks can result in legal consequences, reinforcing the importance of proactive risk management and oversight within organizations.