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Subdux

Cyber Defense: Test what can be reached, not only what can be scanned.

Cyber Defense engagements examine how individual weaknesses combine across technology and trust boundaries. Scope, authorisation, testing windows and stop conditions are agreed before work begins. Findings explain what was exposed, how it was validated, what an attacker could do next and which remediation reduces the most meaningful risk.

Capabilities and outcomes

Application & Software Security

AI & LLM Security Testing

Assessment

Test how AI applications handle attempts to override instructions, extract sensitive information or trigger actions beyond their intended permissions.

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Web App Security Testing

Assessment

Examine sign-in, permissions and application workflows for ways to access data or perform actions a user should not be allowed to.

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Mobile App Security Testing

Assessment

Assess how the app stores sensitive data, communicates with backend services and uses device permissions.

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API Security Assessment

Assessment

Test whether API requests can bypass permissions, expose another user's data or manipulate business transactions.

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Source Code Review

Assessment

Review how sensitive operations are implemented to identify security flaws and explain the code changes needed to address them.

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Security Assessments & Attack Simulation

Vulnerability Assessment & Penetration Testing (VAPT)

Assessment

Identify vulnerabilities and test exploitability across agreed systems, with support to prioritise, implement and retest fixes.

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Red Teaming

Assessment

Test whether your people, processes and security controls can detect and respond to a simulated attack pursuing agreed objectives.

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Infrastructure & Connected Systems

Cloud Security Testing

Assessment

Examine permissions, exposed services and cloud configurations for ways to gain access or extend control across your environment.

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Wireless Security Testing

Assessment

Assess who can connect to your wireless networks, what they can reach and whether guest and internal access remain separated.

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OT / IoT Security

Assessment

Assess device access, communications and network separation, with testing methods agreed around operational and safety constraints.

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Delivery model

Scope before tooling. Evidence before opinion.

  1. Define

    Agree the business objective, scope, dependencies, exclusions and decision owners.

  2. Assess

    Gather evidence and test the controls, systems or operating practices in scope.

  3. Prioritise

    Separate material exposure from background noise and sequence remediation by consequence.

  4. Improve

    Support implementation, verify progress and leave clear ownership with the operating team.

Choosing a starting point

Start with the decision you need to make.

Choose a focused assessment when the question is specific. Choose VAPT when several exposed surfaces need to be evaluated together. Choose red teaming only when the organisation is ready to test detection and response against an agreed objective.

We will recommend the smallest defensible scope, including when a different service — or no engagement — is the better answer.

Discuss an assessment