Most small and mid-sized companies do not need a large security programme first; they need the basics done consistently and written down. A short baseline — sign-in, access, backups, updates and devices — covers what most customers and insurers ask about. These four weeks get it agreed, closed and evidenced, with leadership owning the decisions about remaining risk.
Week 1 — Take inventory
Goal: Know what you have to protect.
- List the systems the company relies on and who administers each.
- List admin accounts and shared accounts.
- Note where customer, employee and financial data lives.
- List company and personal devices used for work.
You finish with: An inventory of systems, admins, data locations and devices.
Week 2 — Agree the baseline
Goal: Choose a short set of controls everyone will follow.
- Require multi-factor sign-in on email, identity and admin accounts.
- Set quarterly access reviews and prompt removal for leavers.
- Confirm backups exist and test one restore.
- Agree update and device security rules, and how exceptions are approved.
You finish with: A one-page security baseline approved by leadership.
Week 3 — Close the gaps
Goal: Fix the most important gaps first.
- Compare the inventory with the baseline and list gaps.
- Rank gaps by risk and effort.
- Give each gap an owner and a due date.
- Record any risk leadership chooses to accept, with a reason.
You finish with: A ranked gap list with owners, dates and accepted risks.
Week 4 — Keep evidence
Goal: Be ready for questionnaires and audits.
- Keep simple evidence for each control: screenshots, exports or reports.
- Write standard answers to common security questions from that evidence.
- Schedule quarterly reviews of access, backups and devices.
- Name who updates the baseline as the company changes.
You finish with: Evidence on file, standard answers and a review schedule.
Common pitfalls
- Starting with tools before knowing what systems and data you have.
- Writing a long policy nobody follows instead of a short baseline.
- Marking controls done without evidence.
- Answering security questionnaires from memory.