Adrienne Tierney is an associate in the Complex Litigation and Dispute Resolution group in Orrick’s San Francisco office. Her practice includes cybersecurity and privacy litigation, complex civil litigation, white collar criminal defense, and government and internal investigations.

Adrienne represents corporate clients and individuals in state and federal courts, as well as in domestic and international arbitration proceedings. In her civil litigation practice she has represented clients in a broad range of commercial disputes and product liability actions. She has also represented her clients at trial.

In her cybersecurity and privacy practice Adrienne has defended clients in class action litigations, and government enforcement actions following the announcement of cybersecurity and privacy incidents. In the event of a privacy or security breach she helps companies respond and guide them through investigation, remediation, notification and any ensuing government inquiries.   

Adrienne maintains an active pro bono practice, which has included protecting women’s reproductive rights and advocating for criminal justice reform.

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