ISO/IEC 27001 is the leading international standard for an Information Security Management System (ISMS) — and getting certified is a structured, multi-stage project.
Engagement typically starts with a gap assessment against the standard's Annex A controls, followed by ISMS design, a formal risk assessment and treatment plan, and implementation of the controls that came out as gaps. An internal audit is run before the certification body's two-stage external audit, and the certificate is maintained through annual surveillance audits across a three-year cycle.
Certification cycle
ISO/IEC
ISO/IEC 27001:2022