John Webster Leslie

Web Leslie represents and advises emerging and leading companies on a broad array of technology issues, including on cybersecurity, critical infrastructure, national security, investigations, and data privacy matters.

Web provides strategic advice and counsel on cybersecurity preparedness, cyber and data security incidents, healthcare privacy and security, cross-border privacy law, and government investigations, and helps clients navigate complex policy matters related to cybersecurity, national security, and critical infrastructure protection.

In addition to his regular practice, Web also counsels pro bono clients on technology, immigration, and criminal law matters.

Web previously served in government in various roles at the Department of Homeland Security, including at the Cybersecurity and Infrastructure Security Agency (CISA), where he specialized in cybersecurity and critical infrastructure, public-private partnerships, and interagency cyber operations. He also served as Special Assistant to the Secretary of Homeland Security.