R&I Foreign interference occurs when activities are carried out by, or on behalf of, a foreign state-level actor, which are coercive, covert, deceptive, or corrupting and are contrary to the sovereignty, values, and interests of the European Union (EU). EU Higher Education Institutions (HEIs) and Research Performing Organisations (RPOs) can benefit from a comprehensive strategy for tackling foreign interference that covers key areas of attention grouped into the following four categories: values, governance, partnerships and cybersecurity. This document contains a nonexhaustive list of possible mitigation measures that can help HEIs and RPOs to develop a comprehensive strategy, tailored to their needs.