ContinuousThreatExposureManagement,operationalised
A Gartner-aligned CTEM programme run end to end by Pentesys — continuous discovery, exploitability-led prioritisation and human-validated testing, all managed inside the Mirage Portal.
Gartner introduced Continuous Threat Exposure Management because the traditional model stopped working: estates change weekly, attackers automate discovery, and an annual penetration test can only ever describe the state of one week in twelve months. CTEM replaces that snapshot with a repeating cycle that keeps exposure visible, validated and reducing.
Pentesys runs that cycle as a managed programme. The Mirage Portal operationalises every stage — discovery through Mirage Surface, AI-assisted testing through Mirage Validate, attack path simulation through Mirage Adversary, and remediation, retesting and reporting through Mirage Assure — with CREST-aligned consultants validating everything that reaches your team.
The five stages of CTEM, delivered continuously
Each stage runs as an operational routine inside the Mirage Portal rather than a project that finishes.
Scoping
We define the exposure surface that actually matters to the business — internet-facing estate, crown-jewel applications, identity, cloud and supply chain — and agree the risk appetite that drives prioritisation.
Discovery
Mirage Surface continuously enumerates domains, subdomains, IP ranges, cloud services, exposed interfaces and leaked credentials, so shadow IT and forgotten assets enter the programme automatically.
Prioritisation
Findings are scored on exploitability and business impact rather than raw CVSS, so remediation effort lands on the handful of exposures an attacker would realistically chain together.
Validation
AI-assisted testing runs constantly and CREST-aligned consultants prove what is genuinely exploitable. Every material finding is human-validated before it reaches your team.
Mobilisation
Owners, SLAs, retests and evidence live in the Mirage Portal and sync to Jira or ServiceNow, so exposure reduction becomes a measurable operational routine rather than an annual project.
How Pentesys delivers CTEM
Pentesys is a UK cybersecurity company delivering CTEM as a managed programme through the Mirage platform, combining continuous discovery with CREST-aligned human validation.
External Attack Surface Management
Mirage Surface continuously maps everything you expose to the internet, including the assets nobody registered with IT.
Continuous asset discovery
Domains, subdomains, cloud services, APIs and shadow IT are re-enumerated on schedule so new exposure enters the programme automatically.
Vulnerability identification
Version-level fingerprinting, misconfiguration checks and credential exposure monitoring across the discovered estate.
Risk prioritisation
Exposures are ranked on exploitability and business impact rather than raw CVSS, so effort lands where an attacker would actually go.
Attack-path validation
Mirage Adversary models how individual exposures chain together into a route to your crown jewels.
AI-assisted security testing
Automated and AI-accelerated testing gives breadth and frequency at a cost annual testing cannot match.
Human penetration testing
CREST-aligned consultants exploit, verify and contextualise every material finding before it reaches your team.
Red teaming
Objective-based adversary simulation proves whether prioritised exposure can be chained — and whether your defenders detect it.
Remediation tracking
Mirage Assure assigns owners and SLAs, and syncs findings to Jira or ServiceNow so fixes live where engineers already work.
Continuous re-testing
Retests are requested from the portal and evidenced on closure, keeping the exposure baseline honest.
What makes a CTEM programme work in practice
The framework is only useful when it changes what your team does each week. These are the principles we build every programme around.
Continuous, not point-in-time
An annual penetration test measures one week of the year. A CTEM programme keeps discovery and validation running so new exposure is caught within days of appearing.
Exposure, not vulnerability counts
We report on what an attacker can reach and chain, not a spreadsheet of scanner output. Executive dashboards track exposure trend, not ticket volume.
AI acceleration with human validation
Automation delivers breadth and frequency at an affordable cost; consultants provide the depth, business context and false-positive elimination automation cannot.
Evidence for boards and auditors
Every cycle produces reportable evidence — validated findings, remediation timelines and retest proof — mapped to the frameworks you already report against.
What changes within the first quarter
A CTEM programme should be measurable. These are the outcomes we hold ourselves to.
- A single, always-current view of internet-facing exposure
- Remediation effort focused on exploitable risk, not scanner noise
- Mean time to remediate tracked and trending down
- Retest evidence available on demand for auditors and customers
- Board-ready exposure reporting produced without manual effort
- Testing coverage that scales with change, not with budget cycles
The building blocks of your CTEM cycle
Most programmes combine two or three of these services, sequenced around the exposure that matters most.
CTEM questions we're asked most
What is Continuous Threat Exposure Management (CTEM)?
CTEM is a Gartner-defined programme model for continuously identifying, prioritising and reducing security exposure. It runs as a repeating five-stage cycle — scoping, discovery, prioritisation, validation and mobilisation — instead of a one-off assessment.
How is CTEM different from vulnerability management?
Vulnerability management catalogues known weaknesses on known assets. CTEM starts from the attacker's view: it discovers unknown exposure, validates what is genuinely exploitable, and measures whether exposure is actually being reduced over time.
How does Pentesys deliver a CTEM programme?
Through the Mirage Portal. Mirage Surface handles continuous discovery, Mirage Validate runs AI-assisted testing with consultant validation, Mirage Adversary simulates real attack paths, and Mirage Assure manages remediation, retesting and reporting.
Do we need to replace our existing penetration testing?
No. Most organisations keep scheduled deep-dive penetration tests for major applications and wrap a CTEM programme around them so exposure between those tests is still discovered and validated.
How long does it take to stand up a CTEM programme?
Scoping and initial discovery typically complete within two weeks. Validation and remediation workflows are usually running inside the first month, with the first full exposure baseline delivered shortly after.
Enterprise-grade penetration testing, built around your business
CREST-registered testing delivered through a flexible PTaaS model — designed to fit your environment, risk profile and internal teams.