Alexios Mantzarlis

Alexios Mantzarlis joined Cornell Tech in May 2024 as the inaugural director of the Security, Trust, and Safety Initiative (SETS), which strives to mitigate and prevent digital harm through graduate education, active communities of practice, and research.

Mantzarlis joined Cornell Tech from Google, where he created the adversarial red team focusing on content risks from generative AI and managed a team responsible for Google Search’s content policy on factual accuracy and high promise answers. Mantzarlis was previously the founding director of the International Fact-Checking Network (IFCN), where he helped draft the fact-checkers’ code of principles and shepherded a seminal partnership between fact-checkers and Facebook.

Mantzarlis holds a BA in philosophy, politics and economics from the University of York, an MA in European affairs from the Institut d’Etudes Politiques de Paris and an MSc in economics and management from Università Bocconi in Milan. He is Greek-Italian and bikes to work from Long Island City, where he lives with his awesome wife and daughter.