ISO 27001 leadership and roles (Clause 5)

By Sam Rivera, Founder, SentinelPanda · June 19, 2026 · 1 min read · ISO 27001

ISO 27001 will not let leadership delegate security and walk away. Clause 5 makes top-management ownership an auditable requirement.

Leadership is a requirement, not a courtesy

Clause 5 is where ISO 27001 insists that security is owned at the top. Top management must demonstrate commitment: ensuring the ISMS aligns with business objectives, providing resources, promoting improvement, and supporting other roles in their security responsibilities. An ISMS that leadership ignores fails this clause.

The policy

A core Clause 5 deliverable is the information security policy: established by top management, appropriate to the organisation, providing a framework for objectives, and communicated to the people it governs. It is the apex document the rest of the ISMS hangs from.

Roles and authorities

Security responsibilities must be assigned and understood — who owns the ISMS, who approves risk decisions, who runs which controls. This need not be a big team; in a startup one or two people hold most roles. What matters is that the responsibilities are defined and the people know they hold them.

Evidence of commitment

Auditors look for tangible evidence leadership is engaged: the approved policy, the resourcing decisions, and especially the management review (Clause 9.3) where leadership makes decisions on the record. SentinelPanda surfaces the leadership inputs and keeps the policy and roles documented as evidence.