Phyllis Sumner

Practice Areas

Phyllis B. Sumner is a partner and the firm's Chief Privacy Officer. Phyllis leads the firm's Data, Privacy and Security Practice and regularly counsels corporate boards, senior executives and other clients on cybersecurity preparedness, emergency response, remediation, compliance, internal and regulatory enforcement investigations and data breach and privacy litigation.

Ms. Sumner is a crisis manager and trial lawyer, who works with her clients' legal, compliance and business teams to strategize, manage and defend when significant privacy and security issues arise. She has assisted clients with responding to and managing hundreds of data security incidents including representing clients defending against class actions and regulator investigations in some of the largest and most high-profile data security incidents.