I would like to ask if it is efficient and correct to design the ISO27001 ISMS for a company/organisation that is not yet in fully operational mode - e.g. their online architecture of their system is not finalised yet and undergoes several changes on a weekly basis.
I understand that as part of risk assessment a penetration testing exercise needs to be conducted and if the system is not final then there is no meaning doing a penetration testing exercise. However, you can implement other non-technical security controls.