Web, API and mobile application security testing examines how an attacker could abuse application logic, interfaces, identities, data flows and client-side controls. The service is intended for organisations that need expert validation before release, after major change or as part of ongoing application assurance.
The purpose is to validate realistic attack paths safely and convert technical weaknesses into remediation priorities.
We agree the precise scope up front. Depending on the objective, environment and authorised access, the engagement may cover:
Confirm roles, workflows, data, interfaces, environments and high-value abuse cases.
Map relevant OWASP and business-logic tests to the actual architecture.
Validate server, client, API and workflow weaknesses under controlled conditions.
Confirm exploitability, affected users, data and operational consequences.
Provide developer-ready findings and validate corrected behaviour where included.
Outputs are prepared for executives and for the technical teams doing the remediation. Depending on scope, they may include:
Testing is governed by written authorisation, explicit exclusions, safety limits and emergency contacts. Material findings are manually validated, supported with reproducible evidence and explained in terms of realistic impact rather than scanner severity alone.
The engagement may draw on OWASP Web Security Testing Guide, OWASP API Security Top 10, OWASP ASVS, OWASP MASVS and MASTG. Where we cite a standard, it explains our method only — it is not a certification, accreditation or official determination.
We confirm the timeline at scoping; it reflects the environment's complexity, the evidence on hand and access to the right people.
The test covers the approved environments, user roles and interfaces available during the assessment. Source-code review, load testing, secure-development programme work and production monitoring are separate unless explicitly included.
Discuss Web, API and Mobile Application Security Testing with CTG. In a focused scoping call we agree the objective, scope, evidence, delivery model and outputs, then send a proposal.
We agree the precise scope up front. Typical areas include web applications, portals and administrative interfaces, REST, GraphQL, SOAP and other authorised APIs, Android and iOS application packages and runtime behaviour, and Authentication, session management and access-control logic. The proposal documents what is out of scope, what access we need, what you provide and how success is judged.
Deliverables depend on the agreed objective and may include application and API test scope, Executive risk summary, Detailed findings with requests, responses and evidence, and Business-logic and abuse-case observations. We connect each key conclusion to its evidence, its impact, its priority and an accountable action.
Authorised testing can create risk if it is poorly controlled. CTG agrees testing windows, prohibited techniques, stop conditions and emergency contacts before work begins, and uses higher-risk techniques only with explicit approval.
Retesting can be included in the initial scope or ordered after remediation. It validates the previously confirmed findings and closely related bypass conditions; it is not automatically a complete new assessment.
We confirm the timeline at scoping; it reflects the environment's complexity, the evidence on hand and access to the right people.
They address adjacent but separate needs. Scoping identifies whether Web, API and Mobile Application Security Testing, Source-Code and Secure-Design Review, or a coordinated programme is the smallest useful approach without duplicating work.
The test covers the approved environments, user roles and interfaces available during the assessment. Source-code review, load testing, secure-development programme work and production monitoring are separate unless explicitly included.
