Ruth E. Promislow

Ruth Promislow is a leading advisor on the emerging and fast‑evolving legal issues at the intersection of privacy, data governance, cybersecurity and AI. Her work spans cutting‑edge matters such as biometrics regulation, children's online activity and privacy, targeted marketing and compliance.

With over 25 years of experience — including more than a decade dedicated to privacy, cybersecurity and data governance — Ruth helps organizations navigate complex regulatory requirements and the operational realities of managing sensitive information in high‑risk, high‑scrutiny environments. She is known for her ability to break down novel technological issues into practical, defensible legal strategies that align with business objectives while anticipating litigation and regulatory exposure.

Ruth is widely recognized as a thought leader in privacy and cybersecurity law. She regularly speaks and teaches on emerging regulatory trends and risk, including as an adjunct professor at the University of Toronto Faculty of Law (Cybersecurity and Artificial Intelligence), an invited speaker to the FBI/RCMP Cybercrime Exchange, the lead facilitator for the MasterCard Emerging Leaders Cyber Initiative, a steering committee member at the Cambridge Forum on Cybersecurity, and a member of the United States Cybersecurity Leaders’ Roundtable.

Her work continues to be ranked by Chambers Canada and other leading legal publications for excellence in privacy, data protection and cybersecurity.