Tonia Ouellette Klausner is a partner in the litigation department of the firm's New York office. She is an experienced litigator and trial attorney in both federal and state courts. Concentrating on privacy law, Internet law, and consumer class actions, Tonia has significant experience in all stages of the commercial litigation process, from discovery through trial and appeal. She also regularly counsels companies regarding information privacy matters including issues pertaining to the collection, use, and sharing of online and mobile data, data breach incidents, privacy policies, administrative subpoenas and investigations, and industry self-regulatory requirements for online behavioral advertising. The International Association of Privacy Professionals has designated Tonia as a Certified Information Privacy Professional.

From 1993-1994, Tonia served as a law clerk to the Honorable Richard D. Cardamone, U.S. Court of Appeals for the Second Circuit. Prior to joining Wilson Sonsini Goodrich & Rosati, Tonia was a litigation associate with Arnold & Porter LLP.