Privacy law, property law, and legal theory.

Recent work includes investigation into online privacy policies, online harms, and mobile device permissions.

Global security, digital technologies, and human rights, including counterintelligence for civil society.

Director of the Citizen Lab

Research interests in privacy-preserving systems and applied cryptography.

Builds practical techniques for secure computation and privacy in real-world systems.

Research at the intersection of cybersecurity, artificial intelligence, and intelligent critical infrastructure.

Investigates cyber deception technologies and intelligent honeypots for active defense, resilient and trustworthy AI for cyberattack detection, and quantum-enhanced cybersecurity for energy, industrial, and transportation systems.

Works on systems and platform security, including trusted execution and mobile/cloud security.

Focuses on building practical defenses and secure computing abstractions.

Theory of private data analysis.

Recent topics include private optimization and differentially private query release

Research at the intersection of security, privacy, and machine learning.

Studies robust/secure ML and privacy-preserving learning techniques.

Research in computer security and privacy, including applied cryptography and authentication.

Recent work includes technology safety and privacy in interpersonal abuse settings.

Research at the intersection of computer security and computer architecture.

Focus areas include microarchitectural security, hardware/system security, and security for AI/ML systems.

Digital privacy, cybersecurity, and cybersecurity policy.

Security of AI, security with AI, trustworthy AI, AI integrity.

Research on foundational aspects of cryptography.

Recent focuses include secure multiparty computation, zero knowledge, and post-quantum cryptography.

Research on privacy, security, and digital freedom on the Internet.

Recent focuses include security and privacy measurement, organizational threat modeling, and censorship circumvention.