CONSUMER PROTECTION | Data Breach & Cybersecurity Litigation

Champions for privacy and consumer rights.

We represent those whose personal, sometimes sensitive, information has been compromised as the result of negligent cybersecurity practices.

Overview

A data breach can result in the unlawful and unauthorized acquisition of personal information compromising its security, confidentiality, or integrity. The result can be a loss of privacy, identity theft, financial or other types of harm.

We have played a leadership role in nearly every major data breach class action litigated to date. We are highly regarded by co-counsel and the judiciary alike for our collaborative efforts in pre-litigation investigations and work with data privacy and economic experts. We are also known for our deft handling of handle complex discovery for large-scale data breach class actions, ensuring efficiencies of scale, as well as our exceptional motion practice work.

We have the unique honor of being court-appointed as Lead, Co-Lead Counsel or serving as Steering Committee Counsel in numerous major data breach class actions in the United States. 

We welcome co-counsel opportunities with other consumer protection law firms, nationwide.

Current Cases

In re Marriott International Inc. Customer Data Security Breach Litigation

In re Marriott International Inc. Customer Data Security Breach Litigation (D. Md.): Cohen Milstein serves as Co-Lead Counsel to oversee a putative nationwide class action related to the data breach of personal information of nearly 400 million customers of Starwood-branded hotels, subsequently acquired by Marriott in 2016, making it one of the largest data breaches in U.S. history.

In re MGM Resorts International Data Breach Litigation

In re MGM Resorts International Data Breach Litigation (D. Nev.): On February 1, 2021, Cohen Milstein’s Douglas J. McNamara was appointed Co-Lead Interim Class Counsel in this consolidated data breach class action against MGM Resorts for failing to implement reasonable data security practices, thereby allowing the personal information of between 10.6 million and 142 million MGM hotel guests and customers to be stolen on or about July 7, 2019.

In re Blackbaud, Inc., Customer Data Breach Litigation

In re Blackbaud, Inc., Customer Data Breach Litigation (D.S.C.): On February 16, 2021, Cohen Milstein was appointed to the Plaintiffs’ Steering Committee in this data breach class action in which Plaintiffs claim that Blackbaud failed to take reasonable steps to prevent a data beach, starting in February 2020, and failed to promptly or accurately provide notice of the data breach to those affected.

Past Cases

In Re Equifax, Inc., Customer Data Security Breach Litigation

n re Equifax, Inc., Customer Data Security Breach Litigation (N.D. Ga.): Cohen Milstein was a member of the Plaintiffs’ Steering Committee in this data privacy breach class action against Equifax, a leading credit-reporting company that safeguards some of the most sensitive financial and personal information of over 147 million individuals across the United States, for its failure to inform the public of a massive data breach and theft of client data. On December 19, 2019 the court granted final approval of a landmark $1.5 billion settlement, consisting of a record-breaking $425 million in monetary and injunctive benefits and requiring Equifax to spend $1 billion to upgrade its security and technology.

Anthem Data Breach Litigation

In re Anthem Data Breach Litigation (N.D. Cal.): Cohen Milstein was co-lead counsel in a certified class action involving the 2015 cyberattack and massive data breach of Anthem, Inc., one of the nation’s largest for-profit managed health care companies, which resulted in the theft of personal identification and health information of 78.8 million insureds. On August 16, 2018, the Court granted final approval to a $115 million settlement in this class action – the largest data breach settlement in U.S. history.