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  3. Penetration Testing

Penetration Testing

Kim Frater, founder of Bid Trawler
Written by Kim Frater
Former Public Sector Buyer • Founder of Bid Trawler • 40+ years' public sector experience
"I believe public procurement shouldn't be complicated. Every guide I write explains the process in plain English so you can bid with confidence."

3 minute read  •  Updated October 2026

A practical guide to understanding what the buyer really wants and how to build a winning response.

It's Not Just About Finding Vulnerabilities

When I first look at this tender, the focus isn't just on finding vulnerabilities.

It's about providing independent assurance and supporting the Senedd's cyber security strategy.

This contract covers planning, executing and reporting on penetration testing for various systems, including both infrastructure and applications and even physical locations.

You must consider how you can demonstrate not just your technical capabilities, but your understanding of the broader strategic goals.

Think About the Assurance They Need

The word "assurance" appears more than once.

It’s clear that the Senedd is looking for confidence in the security of their technology estate.

If I were submitting a bid, I’d focus on how my service provides independent assurance.

Not just identifying vulnerabilities, but validating the effectiveness of existing security controls.

This requires a comprehensive approach, with clear evidence that you can deliver realistic security assessments.

Realistic Assessments, Not Just Testing

The Senedd wants realistic assessments that mimic the techniques used by malicious actors.

This isn't just about running tests.

It’s about simulating real-world attacks in a controlled manner.

I'd make sure my proposal explains how I achieve this balance — thorough testing without disrupting operational services.

Pay Attention to What They Say

The Senedd is clear about the importance of providing "prioritised remediation recommendations".

What does that mean for you?

It means you need to demonstrate how you deliver actionable insights, not just a list of problems.

I'd show how I prioritise findings based on risk, business impact and ease of remediation.

Evidence Always Beats Promises

If there's one thing I learned from my public sector days, it's that evidence always outweighs promises.

If you have experience with similar clients, showcase it.

If you've developed innovative testing methodologies, explain them.

Consider including evidence like:

  • Case studies from similar projects
  • Certifications held by your team
  • Client testimonials
  • Examples of past engagements where you've improved security posture

Don't Underestimate Communication

Communication is vital in a contract like this.

The Senedd needs clear, understandable reports that can be used by technical and non-technical stakeholders alike.

I'd ensure my proposal outlines how I deliver reports that are both detailed and accessible.

The Importance of Continuous Improvement

The Senedd's goal is continuous improvement of their security posture.

So, your proposal should highlight how you support this ongoing process.

Think about how you can offer more than just testing — perhaps workshops, training sessions or follow-up consultations.

One Thing I'd Keep Reminding Myself

This contract isn’t just about technology.

It's about people and processes too.

I'd ask myself, "How do my services integrate with the Commission's existing operations and culture?"

That's the question that will guide your proposal to align with the Senedd's strategic objectives.

Common Mistakes

Avoid submissions that:

  • Focus solely on technical capabilities without addressing strategic goals
  • Fail to demonstrate experience with realistic security assessments
  • Provide generic findings without prioritisation or actionable insights
  • Ignore the need for clear communication in reports
  • Overlook the importance of ongoing support and continuous improvement
  • Miss the balance between rigorous testing and operational safety
  • Forget to include evidence of past successful engagements

My Final Thoughts

The Senedd Cymru isn't just looking for a penetration testing service.

They're looking for a partner in their cyber security strategy.

With a contract value of £80,000 over four years, quality will be key.

The focus is on providing assurance, realistic assessments and continuous improvement.

Your written submission should demonstrate these priorities clearly and convincingly.

Thanks for reading.

I hope this guide has helped make public procurement feel a little less daunting. If it has, then it's done its job.

Kim
Founder, Bid Trawler

P.S. Got a question?

If you've got a question about anything you've read, or you're stuck on a tender, just send me an email.

Whether it's a quick question or you simply need pointing in the right direction, I'm always happy to help if I can.

kim@bidtrawler.com

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About our "How to Win This Contract" guides

Our guides are written using publicly available procurement information, including contract notices and published tender documents where available. They are designed to help suppliers understand the buyer's likely priorities and think more strategically about their approach. They are not based on any bidder's confidential submission, bespoke bid strategy or non-public procurement information.

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