A Fractional CTO SaaS Access Review: Confirm Who Still Needs Each Permission

The company knows who works there, but not necessarily who can still export its CRM, administer its support platform, or open a shared financial workspace. Old projects, role changes, contractors, and one-off invitations accumulate across applications. A list of licenses does not explain whether each person still needs the access attached to them.

A fractional CTO can organize a SaaS access review that joins technical account information with business ownership. The objective is a documented decision on current access and evidence that the approved changes were completed. This guide proposes a governance workflow for leadership and application owners. It is not an instruction to remove accounts automatically or to make changes without authorization.

Start with applications that have a clear business owner

Build a register of the applications in scope. Record the business purpose, data involved, administrator, business owner, user provisioning method, and where permissions can be exported. Include applications purchased directly by departments, not just those already connected to central sign-in.

Prioritize systems where permissions expose sensitive information, enable payments, affect customers, or control important infrastructure. Select a manageable first group with owners who can participate. An enormous review with unassigned applications often produces a spreadsheet of unanswered questions rather than completed decisions.

Separate the business owner from the technical administrator. The owner explains what access the work requires; the administrator knows how it is granted and changed. In a small company one person may perform both roles, but the responsibilities should still be explicit. Ask leadership to assign an owner for orphaned applications before reviewing their users.

Reconcile identities with the people and work behind them

Collect current account and permission exports through authorized administrators. Match users to a current employee, an external collaborator, a service integration, or an unresolved identity. Use an authoritative personnel roster and a contractor sponsor list. Do not assume that an unfamiliar email address means the account can be deleted.

Distinguish interactive human accounts from service identities and integrations. An account without recent interactive sign-in may run an important automated process. A shared login may conceal who used it. Flag such cases for a separate technical investigation and an ownership decision instead of marking them as ordinary inactive users.

Handle the register as sensitive operational information. Store it in an approved private location with access limited to the people conducting the review. The fractional CTO should agree on data handling, export permissions, and retention with the company before gathering detailed account lists.

Ask a business question about each permission

The review question is whether a person needs the current level of access for current responsibilities. It is not simply whether that person is still employed. A manager who moved from finance to operations may remain an employee while no longer needing financial administration rights.

Microsoft's access reviews overview describes recurring reviews of group memberships, enterprise application access, and role assignments in Microsoft Entra. Its deployment guidance also describes delegating review decisions to administrators, business owners, or users. These are examples of supported review mechanisms; coverage and licensing depend on the specific capability and environment.

For your own register, ask the owner to select retain, reduce, remove, or investigate, with a reason. Treat investigate as unfinished work with a deadline and an accountable person. Do not convert an unanswered question into retain merely to improve the apparent completion percentage.

Use a decision register that can drive action

A useful record contains the application, identity, current permission, business justification, reviewer, decision, action owner, and evidence of implementation. Where access comes from several paths, identify those paths. Removing one direct assignment may not remove access inherited through a group or another invitation.

The table is a review aid, not a rule that every application uses the same permission model. Some tools have granular roles; others offer broad access. The CTO should explain the limitations of the actual system and identify alternatives when the application cannot express the business owner's desired permission.

Examine privileged and external access separately

Make administrator permissions visible rather than burying them inside a long user list. Ask what work requires the privilege, whether a narrower role can perform it, and who provides cover when the administrator is unavailable. The owner should understand the consequences of both retaining and changing the permission.

For external collaborators, require a current sponsor and a defined purpose. Review agency workspaces, consultant accounts, customer collaboration areas, and file-sharing invitations in the applications included in scope. End dates help identify questions to ask; they do not prove that all dependent work has ended.

If a business owner requests removal, the administrator should check relevant ownership transfers and integration dependencies through the approved process. A departing contractor may own a dashboard, automation, or shared artifact. Closing access and preserving the company's work are related tasks that should be planned together.

Work an illustrative review without claiming a security outcome

Illustration only: a services company reviews its CRM and support platform. A former sales manager still has CRM administration rights after moving into a delivery role. The commercial owner confirms the person needs read access to customer context but no longer manages the sales system.

The administrator documents how that access is assigned, proposes the narrower role, and obtains the required authorization. After the change, the administrator checks effective permissions and confirms that the person can still complete the agreed delivery tasks. The register records the new role, implementation date, and verification evidence.

A contractor account has no obvious activity, but investigation shows it owns a scheduled data export used by finance. The team assigns an internal owner and plans the transfer before closing the contractor's access. These invented events illustrate the workflow. They are not evidence that Chiefory tested a client's systems, prevented an incident, or certified a security program.

Separate decisions from implementation and verification

Give approved changes a technical owner and a completion date. Use your normal change controls for actions that could disrupt business processes. Record what will change, the systems affected, necessary handoffs, and the verification step. Where relevant, plan how to recover legitimate access if the change has an unexpected consequence.

After implementation, check effective access rather than relying solely on a completed task. Permissions may be inherited, sessions may remain relevant, or the account may exist in another workspace. The administrator should use the platform's documented behavior and the company's policies to decide what verification is sufficient for the case.

Close the register entry only when the decision and implementation agree. If a change cannot be completed, record the blocker and escalate it. Report retained access, changed access, and unresolved cases separately. A review with every row marked reviewed can still contain significant unfinished work.

Establish a cadence that follows business changes

Set a recurring review schedule based on the sensitivity and complexity of the applications. Add event-driven checks when roles change, contracts end, ownership transfers, or a system is replaced. These reviews complement the company's joiner, mover, and leaver processes; they should not become the only mechanism for handling departures.

Use the first cycle to improve the application register and clarify ownership. Track unresolved identities, overdue decisions, overdue implementation, and repeat exceptions. Avoid presenting a lower account count as proof of better security without explaining what the review established and what remains outside scope.

A fractional CTO can coordinate this work with HR, department heads, and authorized administrators. Read how to hire a fractional executive, review Fortium Partners' profile, or use Find an executive with a brief naming the applications, owners, and decision authority. Ask for a completed review register and verified actions, not only a new policy document.