The ISO27001 certification is an international standard that demonstrates the establishment of a robust Information Security Management System (ISMS). This standard ensures the confidentiality, availability, integrity, and traceability of information to protect against cyberattacks or other types of risks. Obtaining the ISO27001 certification is a mandatory prerequisite for obtaining the HDS (Healthcare Data Host) certification. HDS is a more stringent overlay of ISO27001, which healthcare actors must comply with.