Debunking ISO 27001 Myths: The Reality Check

After years of helping companies achieve certification, we've heard every excuse, fear, and misconception about ISO 27001. Let's tackle the big ones head-on.

"We're Too Small for ISO 27001"

This myth usually comes from companies who think ISO 27001 is only for enterprises with massive IT departments and dedicated security teams.

The Reality: 

Being small is actually an advantage. You have:

  • Fewer systems to secure

  • Simpler processes to document

  • More control over changes

  • Greater ability to embed security in your culture

  • Less organisational inertia to overcome

Some of our most successful implementations have been with companies under 50 people. They typically achieve certification faster and maintain their ISMS more effectively than their larger counterparts.

"It's All About Documentation"

This myth stems from horror stories about companies drowning in paperwork and endless policy documents.

The Reality: 

Documentation is just evidence of what you do, not the main event. Good documentation should:

  • Be clear and concise

  • Reflect what actually happens

  • Help people do their jobs better

  • Provide clarity when needed

  • Support your security practices

The best ISMS documentation we've seen fits in a small Wiki. The worst fills multiple SharePoint sites and still doesn't help anyone.

"We Need to Buy Lots of New Technology"

Many companies assume ISO 27001 requires investing in expensive security tools and technologies.

The Reality: 

ISO 27001 is technology-neutral. It cares about:

  • How you manage risk

  • Whether your controls work

  • If you can prove they work

  • How you improve over time

Often, you already have most of the tools you need. The key is using them effectively and consistently.

"It Will Slow Down Our Business"

There's a persistent fear that ISO 27001 means adding bureaucracy and red tape to every process.

The Reality: 

Good security speeds things up. It means:

  • Clear processes for common situations

  • Faster decision-making about risks

  • Fewer security incidents to manage

  • More efficient onboarding

  • Less time fixing problems

  • Quicker responses to client security questions

When implemented well, ISO 27001 reduces friction rather than creating it.

"We Need Security Expertise First"

Companies often think they need to hire security experts before starting their ISO 27001 journey.

The Reality: 

While security expertise is valuable, ISO 27001 is fundamentally about:

  • Understanding your business risks

  • Making informed decisions

  • Following through on those decisions

  • Learning and improving

You can build expertise as you go, and often your team knows more than they realise about what needs protecting.

"Once We're Certified, We're Done"

Some see ISO27001 certification as the finish line, after which they can relax.

The Reality: 

Certification is really the starting line. It means:

  • You have a working ISMS

  • Your key controls are effective

  • You understand your risks

  • You're ready to start improving

The real value comes from building on this foundation to make security part of your company's DNA.

"It's Too Expensive"

The cost of certification often appears daunting, especially for smaller companies.

The Reality: 

Consider these costs:

  • A single security incident (average cost: £20,000+)

  • Lost business opportunities (often £100,000+)

  • Emergency security fixes (usually 3x planned costs)

  • Reputation damage (priceless)

  • Time spent on repetitive security questionnaires

ISO 27001 is an investment that typically pays for itself within the first year through prevented issues and new opportunities.

It Takes Ages to Get iso27001 Certified"

This myth usually comes from companies still recovering from a previous consultant who treated ISO 27001 like a pension plan - something that pays out indefinitely. Or they've heard horror stories about certification projects that ran longer than an enterprise software implementation.

The Reality: 

You can achieve certification in 3-6 months. And no, that's not because we've discovered a loophole or a shortcut - it's because we've stripped away all the unnecessary faff that typically makes these projects drag on.

The quick route to certification means:

  • Starting with what you've already got (which is usually more than you think)

  • Making decisions promptly rather than debating them to death

  • Building security processes that actually work, not writing novels about them

  • Having clear ownership and accountability

  • Working with people who've done this before (and learned from others' mistakes)

The companies that end up in certification purgatory usually:

  • Try to build the perfect system first time

  • Get lost in endless policy reviews

  • Wait for magical moments of universal agreement

  • Let consultants bill by the hour

  • Treat every decision like it's permanently carved in stone

Most certification projects don't stall because they're complex - they stall because people get caught up in perfecting things that don't need to be perfect. Remember: having good security today is better than having perfect security someday in the theoretical future.

The Bottom Line

The biggest myth about ISO 27001 is that it's complicated. It isn't. It's about understanding what matters to your business, protecting it effectively, and being able to prove you've done so. Everything else is just details.

Want to chat about getting certified? Let’s Chat

Tom Gell

Translating ISO 27001 into human language for fast-growing companies. Former public sector leader who helped scale a startup to £1M ARR by making compliance digestible. Now on a mission to prove security certification doesn't require a 400-page policy manual or a PhD in bureaucracy. Powered by coffee and clarity.

https://www.isoserious.com
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When ISO 27001 Goes Wrong (And How to Get It Right)