PRAEVENIRE EST VINCERE

To anticipate is to prevail.

Crimson7 practises Continuous Adversarial Exposure Validation and Remediation. We take Gartner’s Adversarial Exposure Validation and complete it: continuous in front, remediation at the back. We validate your defences continuously, at the Speed of Threat, and close the loop with detection-as-code and response-as-code you can deploy.

Our Reason for Existence

To defeat APTs by using their own tradecraft against them.

Crimson7 exists to stop Advanced Persistent Threat (APT) actors by using their own tradecraft and Cyber Threat Intelligence (CTI) against them. We defeat APTs by increasing the cost of their activities and their ongoing, high-value campaigns targeting your digital assets. We raise the bar of your defences by fusing advanced research in detection and response, red team training of your blue teams, and our offensive security knowledge of tactics, techniques and procedures.

Defeating the attacker means knowing where their campaign will move to next. Crimson7's detection model is effective through the simplicity of its design: raise the cost of every move within a system by engineering effective detection rules, increasing what an attacker must spend on their next campaign step, until the detection fidelity of your defender systems defeats the entire campaign.

To anticipate is to prevail. Praevenire est vincere.

Category Positioning

CAEVR: Continuous Adversarial Exposure Validation and Remediation

Gartner named the category Adversarial Exposure Validation (AEV) in its 2026 Market Guide. We take AEV and complete it. Validation that runs once is a snapshot. Validation that stops at the finding is a to-do list.

So we wrap AEV at both ends: Continuous in front, Remediation at the back. C-AEV-R. CAEVR is Continuous Adversarial Exposure Validation and Remediation: we validate continuously at the Speed of Threat, and we close the loop with remediation delivered as detection-as-code and response-as-code, engineered and proven through Detection Engineering and Validation (DEV).

Our services sit to the left of Continuous Threat Exposure Management (CTEM, which we consider better named CVEM: Continuous Vulnerability and Exposure Management) and to the right of Cybersecurity Mesh Architecture (CSMA). Moving at the speed of vulnerability is admirable. It is not the same as moving at the Speed of Threat.

Continuous

Not periodic. Not compliance-scheduled. Adversarial validation runs at the pace of real attack campaigns, not your audit calendar.

Adversarial Exposure Validation

We test against real MITRE ATT&CK techniques and threat-actor TTPs, not synthetic payloads. Every technique lands in one of four outcomes: Prevented, Detected, Observable-but-undetected, or Invisible.

Remediation

Not another list of things to fix. Findings become detection-as-code and response-as-code, engineered, tested, and ready to deploy into your SIEM or EDR.

The Differentiation

The answer to 'and now what?'

Most security validation programs answer 'what are you exposed to?' Crimson7 answers how good your current detections are at stopping active APT campaigns, and makes your future actions better. We provide Actionable, Contextual and Timely (ACT) detection rules and key response actions that you can test and deploy immediately into your security stack.

ACT: Actionable, Contextual, Timely

Every detection rule we deliver is scoped to the attacker technique it stops, contextualized to your environment, and available at the moment you need it.

DEV: Detection Engineering and Validation

Detection rules are written, tested against real attack execution, validated for false-positive rate, and packaged as KQL, Sigma, or ARM for direct deployment.

Speed of Threat

We operate at the pace of attackers, not auditors. Threat-informed defence means new adversary techniques surface as new detections before your next scheduled assessment.

See It Live

Watch us run real adversary techniques against live defences

11 August 2026. Nick Maeckelberghe opens the session with who we are and why we exist, then Joey Verleg runs HackerFlow and 7Hunter live: attack execution, detection outcome, and detection-as-code remediation in a single hour.

Proof of Value

Ready to validate your detections?

Apply for a free HackerFlow Proof of Value. We run real attack techniques against your environment, show you exactly what fires and what stays silent, and deliver the ACT detections to close the gaps.

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