Cyber Security Assessment Services

Identify Weaknesses Across Your Cyber Security
Our cyber security assessments examine your systems, devices and configurations to reveal vulnerabilities and control gaps before they can be exploited.

Choose from a Vulnerability Assessment, Security Configuration Review or Device Build Security Assessment.
20+ years supporting and securing UK organisations
UK-based, highly certified security specialists
Microsoft 365, Azure and hybrid environment expertise
Full reporting and findings workshop
GIAC Security Essentials Certification
Microsoft Security Partner
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ISO 27001 Certification
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Our Cyber Security Assessment Services
Which Service?
How it Works?
FAQs
Why Stripe OLT?

Our
Awards

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Megabuyte Top 50 Emerging Companies 2024
Cloudtango MSP UK Select 2024 Award
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Scale Up Awards 2023 Winner

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“We were very happy with the professionalism and level of engagement with Stripe OLT. Having them onsite, actively testing our environment and witnessing how they operate, I couldn’t recommend them enough.”

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“The assessment reinforced how quickly the threat landscape is changing, and has helped us understand and mitigate potential risks. If I had one piece of advice for someone who has never undertaken a pen test, it would be: do it before it’s too late.”

Identify Security Weaknesses Before They Are Exploited

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Vulnerabilities, insecure configurations and inconsistent device builds can create opportunities for attackers. However, the UK Government’s Cyber Security Breaches Survey 2025/26 found that only 18% of businesses had conducted a cyber security vulnerability audit in the previous 12 months.

Our focused assessments help you identify these weaknesses and understand the risks they present to your organisation. We provide clear findings and prioritised recommendations, giving your team a practical basis for remediation and future security improvements.

Our Cyber Security Assessment Services

Every organisation has different systems, risks and security objectives. We offer a range of controlled attack simulations, from testing a specific scenario to assessing your wider resilience against our team of determined attackers.

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Vulnerability Assessment

Identify, classify and prioritise vulnerabilities across your systems, applications and network infrastructure.
Our team assesses internal and external systems to identify known vulnerabilities, missing patches, misconfigurations and exposed services.

Findings are prioritised according to severity and business risk, helping you understand which weaknesses require attention first.

Typical focus areas:

Host, network and wireless vulnerabilities
Application and source-code weaknesses
Database vulnerabilities and misconfigurations
Prioritised remediation guidance

Who is this for?

Organisations seeking broad visibility of vulnerabilities across their environment, preparing for compliance requirements or checking whether previously identified weaknesses have been resolved.

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Security Configuration Review

Assess whether critical platforms, services and technologies are securely configured and aligned with recognised security standards.

Our team reviews cloud platforms, network devices and other security-critical systems against recognised good practice, internal policy and their intended design. We identify misconfigurations and control gaps that could provide attackers with access, excessive permissions or opportunities to avoid detection.

Typical focus areas:

Hardening and baseline configuration
Identity, access and permission settings
Logging, monitoring and alerting configuration
Insecure defaults, unnecessary services and configuration drift

Who is this for?

Organisations deploying or managing cloud services, network infrastructure or security-critical platforms that need assurance their configurations are secure, consistent and operating as intended.

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Device Build Security Assessment

Assess whether your workstation, laptop and endpoint builds are secure, consistent and resilient against common attack techniques.

Our team reviews endpoint builds and supporting security controls to identify weaknesses that could help an attacker establish persistence, escalate privileges or move between systems. We assess whether intended security standards are applied consistently and provide clear recommendations for strengthening your device estate.

Typical focus areas:

Device hardening, build consistency and configuration drift
Privilege, local administrator and credential controls
Endpoint protection and EDR deployment
Patch posture, software baselines and unnecessary services

Who is this for?

Organisations managing workstation, laptop or remote-device estates, particularly those using Microsoft 365, Active Directory or cloud-managed endpoints. It can also support new device deployments, internal security standards and preparation for Cyber Essentials or other assurance requirements.

Find the Right Cyber Security Assessment

At Stripe OLT, we adapt each assessment to the technologies, risks and objectives involved. Our UK-based security specialists work with you throughout the engagement, from defining the scope to understanding the findings and deciding what to address first.

At Stripe OLT, we adapt each assessment to the technologies, risks and objectives involved. Our UK-based security specialists work with you throughout the engagement, from defining the scope to understanding the findings and deciding what to address first.

Choose a Vulnerability Assessment if you:

  • Need to identify vulnerabilities across systems, applications or networks
  • Want to prioritise remediation according to severity and business risk
  • Are preparing for an audit, compliance requirement or security improvement programme
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Choose a Security Configuration Review if you:

  • Need assurance that a critical platform or service is securely configured
  • Want to identify insecure defaults, excessive permissions or configuration drift
  • Are deploying or reviewing cloud services, network devices or security tooling
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Choose a Device Build Security Assessment if you:

  • Need to validate the security of workstation, laptop or endpoint builds
  • Want to check whether security controls are applied consistently across devices
  • Are introducing a new standard build or preparing for an assurance review
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Combine Assessments if you:

Need assurance across multiple areas of your environment? We can combine assessments and other services into a coordinated programme, helping you identify connected weaknesses and prioritise improvements across your cyber security.

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How Our Cyber Security Assessments Work


At Stripe OLT, we adapt each assessment to the technologies, risks and objectives involved. Our UK-based security specialists work with you throughout the engagement, from defining the scope to understanding the findings and deciding what to address first.

1. We Define the Scope and Objectives

We agree what will be assessed, set clear engagement boundaries and understand your systems, intended security baselines, internal policies and assurance requirements.

2. We Conduct the Assessment

We use the techniques appropriate to the service, including vulnerability scanning, manual verification, configuration review and endpoint analysis. We control all activity carefully to minimise disruption while gathering clear evidence.

3. We Validate and Prioritise the Risks

We verify identified weaknesses, remove false positives and assess how they could realistically increase exposure or be used by an attacker. Each finding is prioritised according to its technical severity, business impact and existing controls.

4. We Report and Explain Our Findings

We provide a structured report containing clear evidence, risk-based findings and prioritised remediation recommendations. We walk technical and non-technical stakeholders through the results, help agree the next steps and can provide follow-up validation where required.

Combined Cyber Security Assessment Programmes

Build a Broader View of Your Cyber Security Risk

A single assessment provides focused assurance over a defined area. However, vulnerabilities, configuration weaknesses and endpoint security issues can be connected across your environment.

We can combine assessments with each other or with our wider cyber security services. This helps you identify related weaknesses, understand how they could increase risk and coordinate remediation across your environment.
Common combinations include:
Vulnerability Assessment + Security Configuration Review
Vulnerability Assessment + Device Build Security Assessment
Security Configuration Review + Device Build Security Assessment
Vulnerability Assessment + Penetration Testing
Vulnerability Assessment + Assumed Breach Attack Simulation
Phased cyber security assessment programme
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What our Clients Say

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Geo

How we tested their infrastructure and applications from an attacker’s perspective
geo wanted a clear understanding of the security risks across its applications and infrastructure. Our CREST-certified penetration testers assessed its web applications and internal and external environments, providing clear findings and practical guidance for addressing identified weaknesses.

Want to see how we helped geo identify risks across its applications and infrastructure? Click below.
user Awareness
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Foot Anstey

How we helped strengthen awareness of social engineering and cyber threats
Foot Anstey wanted to reinforce the role its employees play in protecting sensitive client data. We delivered an interactive cyber security awareness workshop for more than 250 employees, covering phishing, ransomware, social engineering and the ways attackers use targeted research and AI to create convincing attacks.

Want to see how we helped Foot Anstey build awareness and strengthen its human defences? Click below.

Cyber Security Assessment FAQs

What is a cyber security assessment?
The exact definition of a cyber security assessment can vary between providers and may describe several different types of review. At Stripe OLT, it means a focused assessment of a defined area of your environment to identify vulnerabilities, configuration weaknesses, insecure controls or external exposure.
A Vulnerability Assessment identifies and prioritises weaknesses across a defined environment, usually using automated scanning and manual verification. Penetration testing goes further by attempting to exploit vulnerabilities to understand what an attacker could achieve.
We agree the scope and assessment activity before work begins. Our team uses controlled techniques designed to minimise disruption, with any potentially sensitive activity discussed and authorised in advance.
Yes. Our assessments can provide evidence and remediation guidance to support Cyber Essentials, ISO 27001, supplier assurance and other compliance requirements. An assessment does not provide certification unless this has been agreed as a separate service.
The appropriate frequency depends on your risk profile, technology estate and assurance requirements. Assessments may be conducted annually, after significant system changes or deployments, or as part of a wider security improvement programme. We can help you determine a suitable assessment schedule for your organisation.
Report contents depend on the assessment and agreed scope. They can include supporting evidence, identified weaknesses, associated risks and prioritised remediation recommendations. We can talk you through the proposed deliverables before testing begins and provide a findings workshop for technical and non-technical stakeholders.
The cost depends on the type of assessment, the number of systems or assets in scope, the complexity of your environment and the depth of analysis required. Reporting, workshops and follow-up validation can also affect the scope. At Stripe OLT, we don’t use a one-size-fits-all pricing model; instead, each assessment is tailored to your exact requirements, ensuring you only pay for what is needed. We can define your requirements and provide transparent, fixed-scope pricing with no unexpected additional costs. Get in touch to get a tailored quote.

Why Choose Stripe OLT?

UK TEAM

CREST-Certified UK Security Experts

Stripe OLT is a CREST-certified penetration testing and SOC provider. Our UK-based security specialists bring practical offensive and defensive security experience across endpoints, infrastructure, cloud platforms and security controls.
Microsoft

Microsoft Security Expertise

As a Microsoft Solutions Partner for Security, with Cloud Security and Threat Protection specialisations, we understand the identity, endpoint and monitoring technologies used across Microsoft 365, Azure and hybrid environments.
Control

Secure, Controlled Delivery

Our work follows ISO 27001-certified procecybsses for handling information securely throughout scoping, assessment and reporting. Each engagement is conducted within an agreed scope, with appropriate controls in place to minimise disruption and protect sensitive information.
Reporting

Reporting for Every Stakeholder

Reports include clear evidence, attack paths, effective controls, identified gaps and prioritised recommendations. We support this with a walkthrough that helps technical teams and decision-makers understand the findings and agree their next steps.
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