
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





As readers of this blog know, there have been important case law developments in Delaware concerning boards’ duty of oversight. In the following guest post, the authors review the key recent developments and consider the practical implications for boards. The authors of this paper are: Sebastian M. Alia, Deputy General Counsel, Hudson Insurance Group; H. Stephen Grace, Ph.D., President, H.S. Grace & Company, Inc.: Alvin H. Fenichel, CPA, Senior Advisor, H.S. Grace & Company, Inc.; and Joseph P. Monteleone, Esq., Partner, Weber Gallagher. A version of this article previously was published in the ACC Docket. I would like to thank the authors for allowing me to publish their articles on this site. I welcome guest post submissions from responsible authors on topics of interest to this blog’s readers. Please contact me directly if you would like to submit a guest post. Here is the authors’ article.
In the latest example of claimants seeking to assert the newly revitalized type of claim for breach of the duty of oversight against corporate boards, plaintiff shareholders have filed a derivative lawsuit in Delaware Chancery Court against certain past and current directors of technology company SolarWinds, based on the massive cybersecurity incident involving the company’s software and systems discovered in December 2020. As discussed below, there are several interesting features of this lawsuit in light of recent developments involving claims for alleged breaches of the duty of oversight. A copy of the heavily redacted publicly available version of the plaintiffs’ complaint against the SolarWinds board can be found
In a 