Web application testing
Assess authentication, session management, access control, input handling, business logici, server-side behaviour and client-side attack pathsi.
Technical overview · Validate
Choose the right depth of testing and keep every confirmed finding moving.
A technical view of vulnerability assessment, AI-assisted testing, human-led penetration testing, scope design, evidence, remediation and retestingi.
System flow
From authorised input to usable evidence.
This sequence shows how the principal technical activities connect. It is a capability flow, not a promise that every engagement uses every stage.
- 01
Scope
Agree targets, roles, access, environments, exclusions, timing and escalation paths.
- 02
Discover
Map the available attack surface and establish the expected application or infrastructure behaviour.
- 03
Test
Apply the selected combination of automated, AI-assisted and human-led techniques.
- 04
Validate and report
Confirm reproducibility, business impact, evidence, severity and remediation guidance.
- 05
Retest and close
Reproduce the original condition after remediation and retain closure evidence.
Module specifications
What the technical capability covers.
The modules below retain the operational detail a technical evaluator needs when deciding whether the service fits their environment.
API testing
Review endpoint discovery, object and function-level authorisation, authentication, input handling, rate controls, data exposure and workflow abuse.
Infrastructure testing
Assess exposed services, configuration weaknesses, authentication paths, patch exposure, network segmentation and practical routes between systems.
Authenticated role testing
Exercise agreed user and administrative roles to identify privilege boundaries, horizontal access issues and workflow-specific weaknesses.
AI-assisted continuous validation
Use scheduled or change-triggered automation to extend repeatable coverage, with qualified consultants validating findings before publication.
Vulnerability assessment
Combine broad automated discovery with consultant triage, de-duplication, exposure context and practical prioritisation.
Coverage, logic and outputs
The specification behind the workflow.
These details make the coverage and operating assumptions easier to evaluate. Items identified in the verification notice remain subject to sign-off before launch.
Coverage design
- Defined applications, APIs, hosts, cloud components and environments
- Authenticated and unauthenticated user journeys
- Representative roles, privileges and tenant boundaries
- Permitted techniques, exclusions and safety constraints
- Testing windows, escalation contacts and stop conditionsi
Finding standard
- Reproducible steps and affected scope
- Technical evidence retained with appropriate handling
- Credible impact and attack preconditions
- Severity supported by technical and business context
- Practical remediation guidance and retest criteria
Delivery and closure
- Confirmed findings released through the agreed reporting workflow
- Technical and executive reporting views
- Ownership and remediation status retained against each finding
- Retesting linked to the original evidence
- Residual risk and exceptions recorded where closure is not possible
One platform
Pentesys Portal — One Platform
The Pentesys Portal enables you to define the scope and boundaries of penetration-testing engagements clearly and quickly.
Subscribing to the Portal ensures you always have a CREST-accredited cyber security company in place. In the event of a breach or cyber incident, Pentesys can respond quickly, without the need for a rushed and reactive procurement process.
Boundaries and assumptions
Confirm the detail before work begins.
Technical coverage is shaped by the agreed scope, customer environment, service selection and authorised operating model.
See prices →- Coverage and depth vary with scope, access, time and the selected testing method.
- Automated or AI-assisted testing does not replace human judgement where business logic and chained attack paths matter.
- Testing is performed only within agreed rules of engagementi and authorisation.
Review the scope
Apply the technical model to your environment.
A relevant Pentesys specialist will review this overview, answer questions about boundaries, evidence and workflow, and explain the smallest proportionate next step.
Review this scope with a specialist Please do not submit credentials, secrets or sensitive evidence through the enquiry form.
Technical language, translated
Need a definition before going deeper?
The Pentesys glossary explains the security, testing and assurance terms used throughout this overview in plain English.
Browse the glossary →Trusted experience
Supporting recognised organisations.
Pentesys has continuously performed admirably during our collaboration, giving us faith in their knowledge. They delivered work that above our expectations by approaching each project with a deep understanding of our specifications. Their team demonstrated a remarkable degree of proficiency by effectively pinpointing weaknesses and offering practical suggestions to reduce possible hazards.
Unlike previous pentests that produced generic outputs, this engagement gave us clear, prioritised actions with real-world attack scenarios. The platform visibility into assets, vulnerabilities and remediation progress has helped us mature our security posture significantly. The team were professional, responsive, and genuinely cared about improving our security rather than just ticking a box.
The red team and external attack surface management work highlighted blind spots we didn't know existed. What stood out was the strategic guidance alongside the technical delivery – helping us shape a longer-term security roadmap rather than a one-off engagement. This felt like a partnership, not just a transactional assessment.
Pentesys has continuously produced excellent work. Their group demonstrated extraordinary technical proficiency by spotting crucial flaws and offering clever fixes that greatly strengthened our security stance. Their meticulous approach and attention to detail ensured that every facet of the project was covered in full.
We engaged Pentesys and the team for a complex penetration test and adversary simulation. The quality of the technical findings, realism of the attack paths, and clarity of reporting were outstanding. The recommendations were practical and mapped clearly to business risk, which made board-level conversations much easier. We've since built Pentesys into our ongoing security assurance programme.
ACCREDITED TO THE HIGHEST INDUSTRY STANDARDS
CREST member company
Pentesys has met CREST requirements for penetration testing in EMEA, demonstrating independently assessed technical and operational security-testing standards.
Cyber Essentials certified
Pentesys is Cyber Essentials certified across the whole organisation, showing that essential controls are in place to protect against common cyber threats.
CREST AI Charter signatory
A visible commitment to responsible, transparent and trustworthy use of AI within cyber security services.