Offensive Security
EDR Efficacy Assessment
Cyberus assesses selected endpoint controls using safe simulations, telemetry review and configuration evidence.
- Selected endpoint platforms and policies
- Controlled behavior simulations
- Telemetry, prevention and alert review
- Configuration and coverage recommendations
The proposition
Check what endpoints actually reveal
Check whether selected endpoint behaviors produce the visibility and response options your operating team expects. The work focuses on selected endpoint platforms and policies and records where evidence or authorization limits the conclusion.
Installed does not mean observed
Endpoint tooling depends on deployment coverage, policy, telemetry flow and an operating process. A product may be present while important assets or signals are missing from the review path.
The assessment uses agreed, non-destructive simulations and evidence review. It describes observed behavior for the tested configuration and does not claim to rank every product or represent every attack technique.
Endpoint signal to analyst view
- Endpoint behavior. A suspicious action occurs on a device, much as an intruder might trigger it.
- Agent policy. The installed agent either blocks the action or lets it continue, depending on its settings.
- Telemetry stream. Events travel to the platform only if collection and forwarding are working.
- Analyst response. The action becomes useful only when a person can see, triage and act on it.
Why it matters
- Business risk: Endpoint tools can be installed yet still miss devices, signals or alerts, leaving a false sense of cover.
- Decision it supports: Teams can decide which policy, telemetry or workflow gaps to fix first, and whether a tool change is justified.
- What you receive: You receive a coverage view, a behavior matrix and configuration findings for the endpoint groups in scope.
Evidence across the endpoint control chain
Coverage view
Records selected devices, agent state, policy groups and known exclusions.
- Why it matters
- Gaps in agent state or exclusions mean some devices never take part in the control chain.
- Supports
- Deciding which devices and policies need attention
Behavior matrix
Maps controlled simulations to prevention, telemetry, alerts and analyst visibility.
- Why it matters
- A tool may prevent an action yet send nothing, or alert yet block nothing; both matter differently.
- Supports
- Knowing which layer fails for each behavior
Configuration findings
Identifies settings or integration gaps supported by available evidence.
- Why it matters
- Misconfiguration is often cheaper to fix than replacing a product, but only if it is evidenced.
- Supports
- Targeted tuning rather than guesswork or a rushed purchase
Retest plan
Defines repeatable checks for approved changes and future control review.
- Why it matters
- Endpoint settings change constantly, so a single review ages quickly.
- Supports
- Repeat checks after approved changes
How EDR efficacy is assessed
Why choose Cyberus for EDR efficacy assessment
Findings can guide configuration, telemetry and workflow improvements. They are a point-in-time assessment of agreed systems rather than a guarantee of detection.
Team certifications
Individual qualifications held by members of the Cyberus team. They are not company accreditations, and not every consultant on an engagement holds every badge.
OSCP
Hands-on penetration testing skills, from enumeration to exploitation and privilege escalation.
OSWE
Web application security skills, including source code review and exploiting complex web vulnerabilities.
OSED
Exploit development skills, including analysing Windows software and writing custom exploits.
OSCP+
Hands-on penetration testing skills, from enumeration to exploitation and privilege escalation.
CRTA
Red team analysis skills, including adversary tactics and techniques.
eWPT
Web application penetration testing skills, from assessment method to exploiting common web flaws.
eWPTX
Advanced web application penetration testing skills, including complex attack techniques.
eMAPT
Mobile application penetration testing skills for Android and iOS applications.
BTL1
Defensive security skills across security operations, phishing analysis, forensics and incident response.
eCIR
Incident response skills, including investigating, containing and analysing security incidents.
CRTE
Red teaming skills focused on Windows environments and the tradecraft used against them.
CCT
EC-Council's Certified Cybersecurity Technician (CCT) validates foundational security, network, and defense skills.
Security+
CompTIA Security+ validates core skills in baseline cybersecurity, risk management, and threats.
EDR Efficacy Assessment
Frequently asked questions
Will the assessment use live malware?
Not by default. Safe simulations and agreed test artifacts are preferred; any higher-risk method requires explicit review and authorization.
Does a missed alert mean the product failed?
Not necessarily. Policy, telemetry, integration and analyst workflow are examined before drawing a qualified conclusion.
Can several endpoint products be assessed?
Yes, when each product, device group and comparison question is clearly scoped.
Review endpoint control evidence
Tell us which endpoint groups, behaviors and operating expectations need validation.