
The possibility of a securities class action lawsuit being filed against a company after it experiences a data breach is a long-standing risk. For most of 2025, there were relatively few of these kinds of suits filed, at least compared to recent years. However, last week, two different companies – the e-commerce firm Coupang and the application security firm F5 – were each hit with new cybersecurity-related securities class action lawsuits. The new lawsuits have several interesting features, as discussed below, and at a minimum underscore the fact that the threat of these kinds of cybersecurity suits is ongoing.Continue Reading Two Tech Companies Hit with Data Breach-Related Securities Suits






In numerous prior posts I have examined efforts by plaintiffs’ attorneys to try to impose civil liability on corporate executives in D&O claims following cyber security incidents. Two recent cases show that, in addition to potential civil litigation liability exposure, corporate executives may also face potential regulatory liability and even criminal liability exposure for cyber security incidents at their company. The two recent cases are discussed in an October 27, 2022 memo from the White and Case law firm,
The payment technology firm Block, Inc. (formerly known as Square) has been hit with a securities class action lawsuit related to the company’s announcement earlier this year that a former employee had improperly accessed and downloaded company customer data. The new lawsuit is the latest example of the ways in which data security incidents can translate into D&O claims. The complaint, filed on October 11, 2022, can be found
Readers of this blog know that in recent years, plaintiffs’ lawyers have filed a number of D&O lawsuits against companies that experience cybersecurity-related incidents. Overall, the plaintiffs’ track record on these cases is at best mixed, and a number of high-profile cases have been dismissed. In the latest example of the dismissal of a cybersecurity-related securities suit, the court in the Capital One Financial Corporation data breach-related securities class action lawsuit has granted the defendants’ motion to dismiss. The September 13, 2022 dismissal order in the case can be found