You've invested in detection tools. The honest question your board wants answered: would they actually fire if a real attacker walked the steps that hit companies like yours this quarter?
We walk those steps with you, safely, end-to-end. For every step that succeeds, we show you which of your tools noticed, which stayed quiet, and exactly where a small detection change would have caught it. Nothing destructive ever touches your systems.
Just your domain and your work email. We'll handle the rest.
What it does
Every emulation run is decomposed into the ATT&CK techniques it exercises — Initial Access, Execution, Persistence, Privilege Escalation, Defense Evasion, Credential Access, Discovery, Lateral Movement, Collection, Exfiltration, Impact. The dashboard shows which techniques landed, which were detected, and which were stopped.
Endpoint security validation, data exfiltration paths, and Active Directory reconnaissance — the three scenarios that surface the most-impactful detection gaps. Each is tuned to the threat actors who target your sector, refreshed quarterly from our Attack Research feed.
For every technique we land, we record which of your controls fired and which stayed silent. The output is a heatmap of where your detection coverage is real and where it's a logo on a dashboard. SIEM and EDR integrations close the loop — we see what you saw.
Endpoint emulation runs through a lightweight agent your team controls; network and identity emulation run agentless. Both produce the same Proof Capsule format, signed and runnable, so the verdict is consistent regardless of the surface.
Our Attack Research squad maintains emulation playbooks for the threat actors actively targeting financial services, healthcare, SaaS, and critical infrastructure. When a new ransomware group's TTPs surface in CISA or third-party research, the playbook lands in the platform within a sprint.
No real malware lands on your endpoints. No real data leaves your environment. Every emulation runs against synthetic targets and benign payloads that exercise the technique without the destructive payload — the detection signal is identical, the operational risk is zero.
What you get
Find. Prove. Fix. Verify. — applied to adversary emulation
We pick the TTP chain most relevant to your sector this quarter, decomposed into ATT&CK techniques.
Each technique that succeeds ships a Proof Capsule with the replay, the detection-event log, and the timing.
For each gap, the capsule cites the SIGMA rule, EDR detection logic, or compensating control that closes it.
After the rule lands, the same capsule re-runs and confirms the detection event was generated and routed to the SOC.
Where it fits in CTEM
Adversary emulation is the most rigorous form of Validation in the CTEM framework — it tests not just whether a vulnerability exists, but whether the broader chain of attacker behaviour can succeed against your specific defensive posture. The MITRE ATT&CK alignment is what makes the result legible to your SOC, your auditor, and your board.
Start where it costs you nothing
Drop your domain. We'll quietly look at your external footprint and send a short, plain-language report — with at least one real finding your team can verify themselves. No sales pressure. No surprise calls.
Just your domain and your work email. We'll handle the rest.
CELVEX Group