Security embedded at every stage,
not added later

Cyber security has to be built into every layer from the start. We build secure-by-design systems, identify vulnerabilities before attackers do, and maintain the posture your users and regulators expect.

A breach always costs more than prevention

We build security in from the ground up

We embed security thinking at every stage of development. From threat modelling to penetration testing and compliance readiness, we build the posture that protects your users, your data, and your reputation.

Our cyber security service capability

We take a security-by-design approach to every engagement, integrating security thinking into architecture, development, and operations rather than treating it as a final checkpoint.
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Security architecture design

We design security into your architecture from the start, defining authentication, data protection, and network security.
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Threat modelling

We identify the threats your system faces and design the controls to address the highest-risk attack vectors first.
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Penetration testing

We test your systems the way a motivated attacker would, probing for vulnerabilities automated scanners miss.

Vulnerability assessment

We conduct systematic vulnerability assessments, identifying security weaknesses and providing clear remediation guidance.
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Secure code review

We review your codebase for the security vulnerabilities that regular code review processes typically miss.

Security testing & QA

We integrate security testing into your QA process, running automated scans, manual testing, and adversarial testing.
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Cloud security

We assess and harden your cloud infrastructure across AWS, Azure, and GCP, identifying misconfiguration risks.

Identity & access management

We design IAM solutions that ensure the right people have access to the right systems with the right level of privilege.
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Compliance & regulatory support

We help you meet security compliance requirements from ISO 27001 and SOC 2 to GDPR, building compliance in from the start.
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Security training & awareness

We help your teams understand security risks and build the habits that reduce human-factor risk across your organisation.
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Atomic’s best practice design principles and first class technical expertise has been instrumental in building HALO into the award winning app it is.

We succeed together.

How we built a No.1 app 
for Center Parcs guests

Over 70,000 downloads in its first week, a 15% uplift in bookings, and No.1 in the travel app charts. We designed a native iOS and Android app that made it simpler for Center Parcs guests to plan, book, and get the most from their stay.

Our cyber security approach is built on one thing:
Shift security left, where it's cheapest to get right

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Fix security in design, not production

We integrate security from the earliest stages: threat modelling in design, security reviews in development, penetration testing before launch.
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Test your defences like an attacker

We probe for vulnerabilities automated scanners miss and test the assumptions your security controls depend on. Reported in a way your team can act on.
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Compliance is a floor, not a ceiling

We help you meet the security standards your market requires. Building it in from the start is always cheaper than retrofitting it under pressure.

We build secure systems
 and find vulnerabilities

Atomic's cyber security team works with ambitious brands to build secure-by-design systems, identify vulnerabilities before they're exploited, and maintain the security posture their business requires.

Got questions about cyber security? We've got answers.

Get in touch

Cyber security in software development means designing, building, and testing software with security as a core requirement, not an afterthought. We call it security by design.

Penetration testing is a simulated cyber attack on your software or infrastructure, conducted by specialists to identify exploitable vulnerabilities before malicious actors can find them.

Threat modelling is a structured process of identifying potential security threats to your system, assessing their likelihood and impact, and determining the controls needed to mitigate them.

Through security requirements at the design stage, code review with security focus, static analysis tools, and structured testing at every major milestone, not just at the end.

We work with OWASP, ISO 27001, Cyber Essentials, and NCSC guidance, applying the standards most relevant to your product, industry, and the sensitivity of the data you handle.

At minimum annually, and after any significant architecture change or major feature release. For regulated industries or high-risk applications, more frequent testing is advisable.

Cyber security investment varies by scope, product complexity, and testing depth. We scope every engagement individually and give a clear estimate after understanding your security posture.

A vulnerability assessment identifies and classifies potential weaknesses. A penetration test goes further, actively attempting to exploit those weaknesses to understand real-world risk.

A clear scope of what's to be assessed, access to relevant environments, and any existing security documentation. We'll agree rules of engagement before any testing begins.

Yes. We regularly assess third-party software. We begin with a technical review before scoping the assessment to ensure it covers the most relevant attack surfaces for your product.

Explore our related services

API development

Integrations your systems can depend on

We design and build robust APIs that connect your platforms, products, and third-party services, engineered for security, scalability, and long-term reliability.

Web development

Platforms built to perform and grow

We build fast, accessible, and secure web platforms using modern technologies, designed to scale with your business and stay reliable over time.

Technical planning

The technical foundation your build depends on

We define the architecture, technology choices, and engineering constraints that give your project the clarity it needs to build accurately, on time, and to the right standard.

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