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Cybersecurity · Access control

A quarterly access review your team can finish in an afternoon

Which systems to check, who reviews and signs off, the warning signs to look for and how to keep a record that satisfies insurers and auditors.

Review every quarter, admins more often

Managers review, an owner signs

Record every decision with dates

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The short answer

A user access review is a scheduled check that every account in your business still belongs to a current person who needs exactly the access it has. For a small business, a good process runs every quarter and takes four steps: export the list of users and permissions from each key system, have each manager confirm or reject their team’s access, remove or reduce what is not needed, and record who approved what and when. IT prepares the lists and makes the changes, managers review, and an owner or senior manager signs off. Admin accounts deserve a closer look, and many businesses review them monthly.

Done this way, a quarterly review takes a few hours and catches the accounts that attackers love: leavers, dormant logins, forgotten vendors and people with far more access than their job needs.

Why access reviews matter

Access drifts. People change roles and keep old permissions. Contractors finish and their accounts stay on. A shared login gets passed around. The CIS Critical Security Controls call for keeping an inventory of all accounts, disabling dormant accounts after 45 days of inactivity where supported, and revoking access immediately when someone leaves or changes roles. NIST’s account management control, AC-2 in SP 800-53, also expects organizations to review accounts on a defined schedule.

Cyber insurers ask about it too. Access reviews and prompt removal of former employees appear on many applications, and auditors for larger clients often request evidence.

Which systems to include

Start with the systems where a misused account would hurt the most:

  • Microsoft 365 or Google Workspace, including admin roles
  • Banking, payment and payroll platforms
  • Accounting software
  • Your CRM, practice management or ERP system
  • File shares and shared drives with sensitive folders
  • Remote access tools, VPNs and firewalls
  • Your website, domain registrar and DNS host
  • Line-of-business cloud apps with customer or patient data

Keep a simple register listing each system, its owner and where the user list comes from. That register becomes your review checklist.

Who does what

IT or your IT provider

Pulls user and permission lists, flags obvious problems, makes approved changes and keeps the records.

Managers

Confirm each person on their team still needs each access level. They know the jobs; IT does not.

Owner or senior manager

Reviews admin and finance access, approves exceptions and signs off that the review is complete.

One rule matters: nobody approves their own access. The owner’s admin rights should be reviewed by someone else, such as a partner or your IT provider, and noted as such.

The quarterly review, step by step

  1. Export. For each system, export users, roles or groups, last sign-in date and MFA status. In Microsoft 365, the admin center’s active users list and Entra sign-in data cover most of this. In Google Workspace, use the Admin console user list and reports.
  2. Match against HR. Compare the list with your current staff and contractor roster. Any account without a matching person goes straight to the remove pile.
  3. Flag the usual suspects. Mark dormant accounts, admin rights, shared accounts, guests and anything without MFA.
  4. Send to managers. Give each manager a short list for their team with a keep, change or remove choice for each line and a due date, typically one week.
  5. Act. Disable or reduce access as decided. Disable rather than delete where you need to keep mailboxes or audit history.
  6. Record. Save the exported lists, the manager responses, the changes made and the sign-off with dates. A spreadsheet in a restricted folder works.
  7. Fix the cause. If the same problem keeps showing up, such as leavers not reported to IT, fix the process, not just the account.

Not sure who can get into what at your business? Our free Technology Health Assessment takes about 30 minutes of data collection. The next day you get a plain-language report rating your cybersecurity, IT operations and applications, with a short list of next steps in order. It is yours to keep, with no obligation. Book your assessment.

What to look for

  • Former employees and contractors who still have active accounts or app access.
  • Dormant accounts with no sign-in for 45 days or more.
  • Privilege creep: people who changed roles and kept their old access.
  • Too many admins. Few people should hold global or super admin rights, and admins should use separate admin accounts for admin work.
  • Shared logins that make it impossible to tell who did what.
  • Guest and external users in Teams, SharePoint or Google Drive who no longer need access.
  • Vendor accounts left on for a project that ended.
  • Missing MFA on any account.
  • Mailbox delegation and forwarding to people or addresses that should not receive that mail.
  • Third-party app permissions that users granted to read mail or files.

Your first review will take longer

Expect the first pass to uncover years of build-up, so plan a full day rather than an afternoon. As an illustrative example, a first review in a 30-person office might turn up a handful of accounts for people who left long ago, a former bookkeeper still on the bank portal, several staff with admin rights they were given to install one program, and a generic front desk or scanner account with a password everyone knows.

Work through it in order of risk:

  1. Disable accounts for anyone no longer with the business.
  2. Remove unneeded admin rights.
  3. Turn on MFA wherever it is missing.
  4. Replace shared logins with named accounts, or at least change the password and limit who knows it.
  5. Clean up guests, vendors and app permissions.

After that, quarterly reviews become short, because there is far less to find. Track how many changes each review produces. A falling number means the day-to-day process is working.

Tools that help

Microsoft Entra has a built-in access reviews feature that emails reviewers and can remove access automatically when a review is not approved. As of 2026, Microsoft says it requires Microsoft Entra ID Governance or Entra Suite licenses, with some capabilities available under Entra ID P2. For most businesses under 100 people, exports and a well-structured spreadsheet are enough. What matters is that the review happens on schedule and leaves a record.

Between reviews

Quarterly reviews catch what slipped through. Day-to-day habits keep the list clean in the first place:

  • Remove leavers’ access the same day they go, using a written checklist.
  • Grant access by role or group rather than one person at a time.
  • Require a manager request for any new access to finance or admin systems.
  • Set expiry dates on guest and vendor accounts.

Access reviews and same-day removal of leavers are part of JLB USA’s cybersecurity services. For the departure side, use our employee offboarding IT checklist.

Keep reading

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Questions we hear

How often should user access reviews be done?

Quarterly suits most small businesses, with admin and finance access often reviewed monthly. Also review after events like reorganizations, mergers or a security incident.

Who should sign off on a user access review?

Managers confirm their team’s access, and an owner or senior manager signs off on the overall review and on admin and finance access. Nobody should approve their own access.

What should a user access review look for?

Former staff and contractors, accounts with no sign-in for 45 days or more, people with access from an old role, excess admin rights, shared logins, stale guest and vendor accounts, missing MFA and unusual mailbox forwarding.

Do I need special software for access reviews?

Not under about 100 people. Exports from Microsoft 365 or Google Workspace and your key apps, plus a spreadsheet for decisions and sign-off, work well. Microsoft Entra access reviews require additional licensing as of 2026.

What evidence should I keep from an access review?

The exported user lists, each manager’s keep, change or remove decisions, the changes made, and the sign-off with dates. Insurers and client auditors often ask for this.

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