Privacy and eDiscovery Counsel Samantha V. Ettari and Paris associate Hélène Bérion’s article “Landmark Fines Against British Airways and Marriott for Data Breaches” was published in the February 2021 edition of Revue Internationale de la Compliance et de L’éthique des Affaires. The article examines the joint action taken by the United Kingdom’s data protection authority, the Information Commissioner’s Office, and France’s Commission nationale de l’informatique et des libertés, in imposing the largest security fines under GDPR against British Airways and Marriott International Inc. The article examines what happened and offers key takeaways for companies that are subject to a breach.