ISO 27001 is an international standard applicable to all companies, regardless of their size or sector. It defines the requirements for an Information Security Management System (ISMS) and provides a comprehensive framework for managing information security at all levels of the organization.

This standard applies to any company seeking to protect its sensitive information. CYFUN certification, on the other hand, is specific to Belgium, and is aimed at companies operating in critical sectors or required to comply with the NIS 2 directive, such as energy, healthcare or finance. CYFUN focuses on specific measures to strengthen cybersecurity in these sectors and meet legal obligations.