The International Civil Aviation Organization (ICAO) is probing a cybersecurity incident after a hacker claimed to have stolen 42,000 documents, including sensitive personal data. The agency confirmed it is looking into reports linked to a known threat actor targeting international organizations. The leaked information reportedly contains full names, birth dates, and contact details of individuals, some of whom are ICAO employees. ICAO has refrained from offering further comments, focusing instead on the ongoing investigation into the breach.