Securing an SME's infrastructure without breaking the bank: the basics that matter

With a limited budget, the most common mistake is spreading investment across advanced tools (SIEM, threat intelligence) before addressing the basics. Across our audits, a large majority of avoidable incidents come down to four specific gaps.

1. Firewall and network exposure

A service exposed on the internet for no reason — a database port left open by mistake, a publicly reachable admin interface — remains the most common entry point. Reducing exposed surface to the strict minimum costs audit time, not hardware budget.

2. Backups that are tested, not just scheduled

A backup that has never been restored isn't a backup, it's a hope. We systematically schedule a quarterly restore test, off the production server — that's what distinguishes a backup from a mere copy.

3. Automated, controlled updates

Most compromises exploit vulnerabilities already fixed by a patch available for months. An automated patch, applied with a short test window, closes that door without dedicating a full team.

4. Access: VPN and multi-factor authentication

No sensitive service should be directly reachable from the internet without going through a VPN, and no administrator account should rely on a password alone. These two measures combined eliminate the majority of unauthorized access attempts.

What about the rest?

Real-time monitoring, system hardening, intrusion detection: these are useful additional layers, but they have diminishing returns as long as the four basics above aren't in place. An initial audit exists precisely to identify which ones are missing for you.