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ISO 27001 for Startups: A Practical Guide

When I hear "ISO 27001" in the same sentence as "startup," I see two reactions: panic or cynicism. Panic because it seems like a bureaucratic monster impossible to tackle with a small team. Cynicism because "we don't need it, we're only ten people." Both reactions are wrong.

I work with ISO 27001 both on the consulting side and as a professional pursuing Lead Auditor certification. What I have learned is that the standard is much more flexible than most people believe. It does not tell you HOW to implement controls - it tells you WHAT you need to control. And that difference is enormous for a startup.

The pragmatic approach

Step one: forget the 200-page templates. Your security policy can be a 5-page document that everyone actually reads, instead of a 50-page tome that nobody opens. The standard requires that the policy exists, is communicated, and is reviewed - not that it is long.

Step two: risk assessment is not an academic exercise. Take your real assets (source code, customer data, cloud infrastructure), identify concrete threats (ransomware, insider threat, misconfiguration), assess impact in business terms. Use a simple 3x3 matrix, not an enterprise methodology with 47 parameters.

Step three: the technical controls you probably already have. MFA? Backups? Logging? Code review? If you do good engineering, you already have half of Annex A controls implemented. The work is documenting them, not inventing them. ISO 27001 for a startup is not about adding bureaucracy - it is about formalizing the good practices you should already have.

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