ISO/IEC 27001

ISO/IEC 27001 is the leading international standard for information security management. Rather than prescribing a fixed checklist of controls, it defines requirements for an Information Security Management System (ISMS) - a documented, risk-based program for identifying security risks, applying controls to treat them, and continually reviewing and improving the whole thing. An organization earns certification by passing an audit from an accredited certification body, and re-certifies on an ongoing cycle. For SaaS builders, ISO 27001 plays a similar role to SOC 2 as an enterprise-sales trust signal, but with a key difference: SOC 2 is an attestation report (a U.S.-centric auditor's opinion you share under NDA), while ISO 27001 is a formal, internationally recognized certificate, which tends to carry more weight with European and global buyers. Many companies eventually pursue both. Practically, expect a multi-month effort: scoping the ISMS, running a risk assessment, writing policies, implementing controls, and gathering evidence. Start early if enterprise or international deals are on your roadmap - procurement teams increasingly make it a gate.