ESCO is the European Skills, Competences, Qualifications and Occupations taxonomy. It gives jobs and skills a standardized, machine-readable vocabulary so software can compare profiles, vacancies, and training records using the same terms. In workforce systems, this reduces ambiguity from free-text CVs and helps matching engines identify equivalent or related skills across countries and sectors.
In cyber security, ESCO matters because skills platforms store sensitive personal and career data and depend on trusted labels. If an attacker tampers with taxonomy mappings, imports poisoned data, or alters skill definitions, automated matching can misclassify people, hide qualifications, or steer recommendations incorrectly. Defenses include versioned taxonomies, authenticated data feeds, integrity checks, logging, and human review of high-impact decisions. Used well, ESCO improves consistency; used poorly, it becomes a single point where data errors turn into operational risk.