Assess and validate your organisation’s applications, cloud platforms, infrastructure and AI-enabled tools with security testing services from a leading cyber UK provider.
One of the UK's leading providers for accredited cyber expertise
Holding the broadest accreditation portfolio in the UK cyber sector, CSA Cyber offers assurance built on independently validated expertise, giving organisations confidence that their protection meets the highest industry benchmarks.
WHY THIS MATTERS
Modern security challenges demand assurance over assumptions
UK cyber threats are intensifying
The scale and severity of attacks continue to escalate with a 129% surge in 'nationally significant' cyber attacks year-on-year1.
Regulatory pressure is increasing
CSRB, CAF, NIS2 and sector regulators expect measurable, repeatable testing programs that validate controls at depth.
Environments are growing in complexity
Multi-cloud, SaaS growth and AI adoption mean attack surfaces change faster than traditional assurance can keep up, making continuous validation essential.
CHECK and CREST-accredited Penetration Testing
CSA Cyber delivers adversarial security testing across the full spectrum of modern architectures, supporting organisations across high-security, regulated and complex environments.
Core testing services
Application Testing
Targeted testing of web, mobile, API and product applications.
Predictable budgeting and simplified procurement process.
Flexible access to application, cloud, infrastructure and Red Team services.
Integrated dashboards, workflows, Jira sync and continuous collaboration channels.
Assurance you can trust
Penetration Testing with CSA Cyber gives leaders' complete confidence in their defensive posture and visibility over the issues that matter most.
Accredited to deliver Home to CHECK and CREST-accredited testers, domain practice leads and specialist teams across AI/ML, OT and cloud.
Platform-led testing Real-time reporting, asset visibility, remediation workflows and included retesting for critical and high issues.
Equipped to remediate As part of FluidOne Group, we combine Cyber expertise with Secure Networking and IT engineering to offer end-to-end remediation services.
In the modern cyber threat landscape, change is the only constant. The challenge for security leaders isn’t identifying vulnerabilities once a year, but maintaining confidence as environments evolve. When assurance lags behind change, exposure accumulates and remediation decisions are made on outdated information.
CSA Cyber extends penetration testing through continuous, threat‑led re-validation. By assessing how vulnerabilities age, how quickly weaknesses are addressed, and where control effectiveness degrades over time, organisations gain evidence‑based assurance grounded in real operating conditions.
Speak to a specialist about extending assurance with continuous testing.
Typically, we require the number of IPs, domains, or application complexity details. We can jump on a quick call to help you define these boundaries.
Engagement lengths vary by scope, but most standard tests are completed and reported within 5 to 10 business days.
Yes. Our testers are highly experienced in "safe exploitation" techniques designed to validate vulnerabilities without disrupting your services.
You receive an executive summary, a technical deep-dive of all findings, and access to our interactive platform for real-time tracking.
We include retesting for web-exploitable Critical and High findings as standard, ensuring your remediation efforts were successful.
WHY CSA CYBER?
Your organisation’s trusted partner in layered cyber resilience
With proven experience across critical sectors and a complete suite of accredited cyber services, CSA Cyber offers a single, trusted partner for protection, validation and continuous improvement.
One partner, multi-layered cyber resilience
A premium suite of accredited services shaped by deep heritage in securing critical sectors and high-profile clients.
Leading the UK for cyber excellence
Our UK-based, security-cleared teams are trusted by clients and validated by recognised industry bodies across the globe.
Engineered for high-security delivery
Our practice is deliberately scaled to combine major-provider capability with specialist-level precision and trust.
Complete cyber protection starts here
Talk to a specialist about validating your defences and reducing real‑world exposure through our CHECK and CREST‑accredited penetration testing services.
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