
In the immediate aftermath of the Delaware Supreme Court’s 2019 decision in Marchand v. Barnhill, which revitalized so-called Caremark claims for breach of the duty of oversight, one question I was asked was whether claimants might seek to assert breach of the duty of oversight claims in the context of cybersecurity and data privacy issues. Claimants did, in fact, subsequently raise Caremark claims in connection with the high-profile date breaches at Marriott and SolarWinds, but in each case, the Delaware Chancery Court granted the defendants’ motions to dismiss (as discussed here and here, respectively), raising questions about the viability of duty of oversight claims in the cybersecurity context.
Notwithstanding the less than promising track record for these kinds of claims, in a recent article, NYU Law Professor Jennifer Arlen argues that cybersecurity-related claims for breach of the duty of oversight should support Caremark liability in at least one class of cases – that is, cases relating to companies for whom cybersecurity is a “mission critical legal risk” and in which it is alleged that the company had inadequate cybersecurity that risked (and later caused) substantial harm to businesses and government agency customers, and that the company had misled the customers through statements that were designed to defraud the customers into believing that the company’s cybersecurity systems were materially better than they were. Professor Arlen’s March 18, 2025, post on the Harvard Law School Forum on Corporate Governance about Caremark claims in the cybersecurity context can be found here.Continue Reading Cybersecurity and the Duty of Oversight



In a series of opinions beginning with the Delaware Supreme Court’s 2019 decision in Marchand v. Barnhill, Delaware courts have sustained a number of so-called “Caremark” claims based on the defendant board members’ breach of their duty of oversight. The courts have denied motions to dismiss in cases where the boards failed to act despite “red flags” alerting them to problems. But what happens if the “red flag” that alerts the board to a problem is a litigation demand letter submitted by a prospective claimant seeking to have the board take up litigation because of problems identified in the letter? In an interesting and troubling May 24, 2022 decision, Vice Chancellor Travis Laster sustained a claim based on these kinds of allegations, accepting what he called a “novel theory” with “admitted trepidation.” Though Laster sought in his opinion to contain some the more “disquieting” implications of this ruling, there is now at least a theoretical basis on which future prospective claimants could argue that a board’s rejection of a litigation demand letter could itself give rise to a separate breach of fiduciary duty claim.