Pluto Cyber Security simulates real-world attacks on the applications, APIs, networks and cloud that UK businesses rely on. Then we hand your team clear, evidence-backed findings they can actually fix.
Why manual-first
Scanners flag thousands of low-value alerts. Our engineers manually prove the handful that actually put your business at risk, and give you evidence your team can act on.
Get a free assessment callWhat we do
Seven core practices, each led by senior, certified engineers and mapped to the frameworks UK businesses answer to.
Manual-first testing across web, API, network and cloud. We simulate real attacks to surface exploitable risk before adversaries do.
Harden and monitor AWS, Azure, GCP and Microsoft 365 against misconfiguration and identity risk.
Adversary simulations and defensive drills that measure your true readiness.
Secure every stage of your development lifecycle, from code review to threat modelling and DevSecOps.
Find, prioritise and fix what matters before it's exploited.
24/7 detection and response across endpoints, networks and cloud.
Get audit-ready and stay there, mapped to the frameworks you answer to.
// Not sure which test?
Tell us your stack and goals. A senior engineer maps the services that fit, with no obligation.
Our methodology
Six disciplined phases on every engagement, from scope to sign-off, each led by a senior, certified engineer.
We agree targets, boundaries, timing and success criteria up front, so testing is safe, authorised and focused.
We map your real attack surface the way an adversary would, enumerating assets and entry points before any exploitation.
Certified engineers exploit and chain weaknesses by hand, testing the business logic automated scanners can't reach.
Every finding is verified and documented with reproduction steps, proof-of-concept and prioritised remediation.
We guide your team through the fixes, clarifying findings and validating the approach as you patch.
We retest once fixes ship and issue verification evidence, closing the loop with a clean sign-off.
Why trust us
Every engagement is backed by guarantees that put the risk on us, not you.
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Engagements delivered
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False positives, hand-verified
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Five-star reviews · Clutch & G2
We re-verify every fix on every engagement, at no extra cost.
No juniors, no outsourcing. Your test is run by certified experts.
Encrypted evidence, defined retention, and a clean teardown.
Agreed up front, with no surprise change orders mid-engagement.
Industries we serve
Sector-specific testing, mapped to the regulations, data and threats your industry faces across the UK.
Protect transactions and customer data from fraud.
Safeguard sensitive data and meet strict compliance.
Secure critical infrastructure and public data.
Protect student records and learning platforms.
Resilient security for cloud, apps, and IP.
HIPAA-ready protection for patient records.
Safeguard SCADA and OT infrastructure.
Defend OT and critical energy operations.
Defend networks, customer data, and payments.
// Ready to act?
Get a free security assessment from a senior engineer. Real, manual findings, not an automated scan.
The team
Senior, certified specialists run every engagement by hand, each holding the credentials your auditors across the UK recognise.
Senior Cyber Security Consultant
A decade of end-to-end assessments across cloud, network and application environments.
Senior Penetration Tester
Specialist in IoT, embedded systems, firmware and wireless protocol testing.
Penetration Tester
Chains logic flaws into realistic attack paths across web, API, cloud and on-prem.
Cyber Security Consultant
Assesses cloud and identity against ISO 27001, NIST CSF and CIS Controls.
What clients say
Independent, verified reviews from security and engineering leaders across the UK, on Clutch and G2.
“Pluto Cyber Security found exploitable issues three prior vendors missed, then handed us a report our auditors accepted without a single follow-up.”
Head of Security
Financial Services · UK
“The manual testing surfaced business-logic flaws no scanner would ever catch. Clear, prioritised remediation, and they retested every fix for free.”
CTO
SaaS · UK
“Senior engineers throughout, with no juniors and no outsourcing. Tight scoping, an audit-ready report, and the price didn't move mid-engagement.”
IT Director
Healthcare · UK
FAQ
Answers to the questions we hear most. Still unsure how it applies to your environment? Our engineers are happy to talk it through.
Talk to an engineerA scan is automated and flags potential issues, often with many false positives. A penetration test is manual: our engineers actively exploit weaknesses the way a real attacker would, then verify and prove each finding. You get real risk, not a noisy list.
Most web, API or network tests run one to three weeks depending on scope. We agree timelines during scoping and deliver an audit-ready report shortly after testing completes, followed by a free retest once fixes are shipped.
Our testing aligns to OWASP, NIST, PTES and MITRE ATT&CK, and our reporting supports SOC 2, PCI DSS, UK GDPR and ISO 27001 readiness. Engineers hold OSCP, CISSP, GIAC and GPEN certifications.
It depends on the goal. Black-box testing starts with no credentials. Authenticated (grey-box) testing, which uncovers far more, uses test accounts at each role level. For code review we take read-only repository access, and we recommend the right approach during scoping.
No. We agree rules of engagement, safe testing windows and escalation paths before we begin. Testing is controlled, authorised and designed to avoid impact to your live environment.
Yes, a retest is included with every engagement. Once your team ships the fixes, we re-verify each finding and update the report with confirmed-resolved status, at no extra cost.
// Still weighing it up?
No pressure and no obligation. Get a senior engineer's read on where you're exposed and what to fix first.
Insights
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Let's get started
Book a free security assessment. We'll simulate real attacks, expose critical vulnerabilities, and hand you clear, evidence-backed findings.
