This flash note serves as an essential guide for companies navigating the complexities of the updated Network and Information Systems Directive (NIS 2), which is set to come into force in October 2024. It offers a crucial overview for CEOs and senior management, detailing the directive's impact on businesses, particularly those operating in critical infrastructure sectors across the European Union. The technical report—which is essential for CEOs and general management to comprehend given the corporate and personal legal challenges they could face if they are not compliant—emphasizes the urgency of compliance, given the increasing prevalence of cyberattacks and their potential threats to vital industries and national security.