Simplexity: 10 Real-World Principles for Building an ISMS That Actually Works

Security doesn’t need to be complicated.

But it does need to be intentional.

As your startup grows, you’ll eventually need to prove you have security practices in place. That’s where an ISMS (Information Security Management System) comes in.

But most teams get stuck trying to build something perfect from day one.

Here’s a better approach.

"Simplexity" = simplicity on the other side of complexity.

It’s not about skipping steps. It’s about cutting through the noise.

These 10 principles will help you build a real, usable ISMS—without the overkill.

1. Treat the ISMS Like a Project

Don’t let it become a side task that drags on forever.

Give it a timeline. Assign resources. Track progress.

2. Align with Business Goals

Why are you doing this?

Your leadership team should be able to clearly answer: How does this help us win deals, manage risk, or build trust?

3. Start with Why

People follow what they understand. Start your ISMS rollout by explaining why it matters, why now, and what value it brings.

4. Involve a Real Team

If you hire a consultant or project manager, that’s fine—but make sure internal people are involved and take ownership.

5. Start Small, Improve Continuously

Don’t try to write perfect policies.

Write minimal ones that reflect reality. Then iterate.

6. Assign Real Ownership

Every policy should have an owner.

Every risk should have someone accountable for managing it.

If no one owns it, it doesn’t exist.

7. Hook Into What Already Works

Don’t reinvent the wheel. If you already have onboarding, add a security training block.

If you have a weekly exec sync, add ISMS to the agenda.

8. Make Policies User-Centric

Policies should answer real questions like:

• How do I get access to this system?

• Can I share this file with a contractor?

If your team can’t understand it, they won’t follow it.

9. Mind the Gap

Use training and surveys to spot where policy and reality diverge.

Focus on the few key behaviors that actually reduce risk.

10. Don’t Forget to Have Fun

Security doesn’t have to be dry.

Make it a team project. Share the wins. Celebrate progress.

Final Thought:

The best ISMS isn’t the most detailed. It’s the one your team actually uses.

Want a simple, structured way to start?

🔧 Try the free Startup Essentials plan and build your ISMS the real-world way.