Technical overview · Adversary

Translate realistic attacker objectives into measurable defensive improvement.

A technical view of threat-led testing, purple teaming, red teaming, TIBER-aligned exercises, governance, evidence and detection improvement.

See the Adversary buyer's guide

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.

  1. 01

    Set the objective

    Define the protected outcome, target condition and evidence required to answer the resilience question.

  2. 02

    Build the threat model

    Select relevant actors, behaviours, attack paths and intelligence assumptions.

  3. 03

    Govern the exercise

    Agree rules, exclusions, control-cell roles, escalation paths and stop conditions.

  4. 04

    Execute and observe

    Run permitted activity while capturing attacker decisions, control interaction and defensive response.

  5. 05

    Improve and replay

    Turn evidence into owned improvements and repeat priority techniques to measure change.

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.

01

Threat-led scenario design

Translate business-critical assets and relevant threat intelligence into an objective, plausible attack paths and measurable success conditions.

02

Initial-access simulation

Exercise explicitly authorised external, identity, phishing, social-engineering or other initial-access routes appropriate to the engagement.

03

Cloud and identity attack paths

Assess permitted routes through identity, privilege, cloud control planes, exposed services and trust relationships.

05

Detection and response validation

Compare executed techniques with telemetry, alerting, analyst decisions, containment actions and evidence retained by defenders.

06

Control-cell governance

Maintain the appropriate white-team or control-team structure, communications, safety oversight and decision record throughout the exercise.

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.

Exercise selection

  • Threat-led penetration test for defined actor-informed technical scope
  • Purple team exercise for collaborative detection improvement
  • Red team operation for covert objective-led pressure
  • TIBER-aligned exercise where regulated governance is required
  • Replay activity to verify priority defensive improvements

Rules and evidence

  • Signed authorisation and named accountable stakeholders
  • Permitted targets, identities, techniques and operating windows
  • Explicit exclusions, safety controls and stop conditions
  • Secure evidence capture and sensitive-data handling
  • Incident escalation path for unexpected operational impact

Measured outputs

  • Objective and attack-path narrative
  • Technique coverage mapped to observed controls
  • Detection, investigation and response timeline
  • Prevention, detection and response improvement backlog
  • Executive briefing plus technical replay plan

One platform

Pentesys Portal — One Platform

The Pentesys Portal enables you to review and select the scope, objectives, attack vectors, assets and rules of engagement for a red-team or purple-team simulation exercise—so you are in absolute control of the exercise and the environments we target.

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.

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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.

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Royal Ballet and Opera
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Rightmove
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Fortis
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Orange
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Small Luxury Hotels of the World
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AI Incumbency
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.
MDFortis Cyber Security Limited
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.
Head of ITHealthcare Technology Company
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.
CISOSaaS Provider
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.
IT Security SpecialistRightmove PLC
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.
CTOUK Financial Services Provider

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