Practitioner
writing.
Articles, guides, and field notes from the instructor team. Useful for anyone preparing for CompTIA SecurityX (CAS-005), whether or not you enroll with us. New writing posts twice a month.
From the instructor team.
Operational writing on the CAS-005 exam, the work it represents, and the broader practice of senior security engineering. Filed by topic, not by date.
What is on the CompTIA SecurityX (CAS-005) Exam
A working practitioner’s read of the four CAS-005 domains, their approximate weights, and what each one actually tests beyond the published blueprint.
How CompTIA SecurityX Compares to CASP+, CISSP, and CISM
A side-by-side of where SecurityX overlaps with adjacent advanced certifications, where it differs, and which one is the right next credential for the work…
A Detection Engineering Workflow That Actually Scales
The detection-as-code pattern, MITRE ATT&CK mapping, false-positive triage, and the small set of habits that turn detection from a backlog into a discipline.
Threat Modeling for Architects: STRIDE, PASTA, and When to Skip Both
Two of the most common threat modeling methods, where each fits, and the lightweight alternative that often works better for fast-moving engineering teams.
Five Mistakes Candidates Make on the CAS-005 Exam
Patterns we see consistently in candidates who fail on the first attempt, drawn from post-exam debriefs across the last four bootcamp cohorts.
Building a GRC Program That Engineers Will Actually Use
A practical sequence for standing up governance, risk, and compliance work without alienating the engineering teams whose buy-in determines whether the program lives or…
Zero-Trust Architecture: From Marketing Term to Working Implementation
What zero-trust actually means in practice, the three core control layers that make it real, and the implementation order most teams get wrong.
AI Security Considerations on the CAS-005 Exam
What CompTIA added to the SecurityX exam objectives around AI and machine learning, the threat models that matter in 2026, and how the exam…
Building a Home Lab for SecurityX Exam Prep
A practical home lab specification for CAS-005 candidates, including the cloud-credit approach that beats running everything locally, and the four lab scenarios worth your…
Material we give away.
Four high-leverage resources released openly. No email required for the diagnostic test. The rest sit behind one form so the instructor team can send you updates when new material drops.
CAS-005 Diagnostic Test
A 60-question diagnostic mapped to the four CAS-005 domains. Scored with a weak-area breakdown so you know where to start. No email required.
SecurityX Objectives Map
The full CompTIA CAS-005 exam blueprint reformatted as a checklist, with our annotations on which objectives are most heavily tested.
CASP+ to SecurityX
For practitioners with existing CASP+ knowledge: a side-by-side map of what is new in CAS-005, what was removed, and what was deepened.
DoD 8140 Work Role Map
The 19 DoD 8140 DCWF work roles CompTIA SecurityX (CAS-005) is approved for, side-by-side with the work roles satisfied by Security+, CySA+, CISSP, and CISM.
Get the next drop.
When the instructor team publishes a new article, practice test, or lab walkthrough, we send it to the list first. Roughly one email every two weeks, no fluff, easy unsubscribe.