Reviewing administrator access means finding every account that can make high-impact changes, confirming each one is still needed, splitting personal logins from admin logins, and writing down any case where you can't follow the rule exactly. Do this on a schedule, not just after something goes wrong, and you close off one of the easiest paths an attacker, or a simple mistake, can take through your business.

Step 1: Build a Complete Inventory of Privileged Accounts

You can't secure access you don't know exists. Start by listing every account that has elevated rights, not just "IT admin," but anything that can change settings, access financial data, deploy code, or manage other users' permissions.

Walk through each major system separately: email/identity platform, cloud infrastructure, finance and payroll tools, CRM, website or CMS, backup systems, and any line-of-business software. For each, pull the full list of accounts with elevated roles.…