PSE Cortex study plan
PSE Cortex · Give each week a clear focus.
8 weeks · About 7 hours per week
Cortex XSIAM
Map the Cortex XSIAM architecture end to end: data sources, brokers, Cortex Data Lake ingestion, analytics engine, and automation layer, drawing your own labeled diagram from memory
Explain how XSIAM consolidates SIEM, SOAR, ASM, and endpoint telemetry into a single platform, and articulate the operational difference from stitching separate products together
Define the core detection surfaces (identity, endpoint, network, cloud, third-party logs) and list which native sensors or integrations feed each one
Practice navigating the XSIAM console areas for incidents, alerts, cases, threat intelligence, and detection rules until you can locate each without searching
Your checkpoint
A one-page hand-drawn XSIAM architecture diagram plus a 15-term glossary with your own definitions
Cortex XSIAM
Walk through the XSIAM incident lifecycle from ingestion and correlation through triage, investigation, response, and closure, and describe what triggers each transition
Compare XSIAM detection content types (analytics, correlation rules, IOC matching, behavioral analytics) and explain when each is the right tool
Draft a triage workflow for a brute-force-then-lateral-movement scenario, naming the specific artifacts and queries you would inspect at each step
Identify how XSIAM handles alert grouping into incidents and what tuning levers reduce noise without suppressing true positives
Your checkpoint
A written incident response runbook for one multi-stage attack scenario, minimum 400 words, covering detection through containment
Cortex XDR
Diagram Cortex XDR's endpoint agent, local analysis, causality chain, and cloud analytics components, and explain what runs on the endpoint versus in the cloud
Explain the causality analysis model and how it links processes, files, network connections, and registry changes into a single investigation view
Configure and describe the main policy types (prevention, exploit, malware, restriction) and state what each profile blocks versus alerts on
Practice building an investigation from an alert using the causality view, and document the exact click path and filters you used
Your checkpoint
A step-by-step investigation walkthrough of one endpoint alert, with the causality chain annotated and the verdict justified
Cortex XDR
Use basic and advanced XQL syntax to query process, network, and file event tables, and write at least five working queries from memory
Explain alert severity, star/score ranking, and how BIOC and IOC rules differ in what they detect and how they are authored
Describe response actions available on an endpoint (isolate, terminate, quarantine, live terminal, file retrieval) and the risk and scope of each
Trace how XDR alerts and incidents can be forwarded or shared with XSIAM or a SIEM, and what the integration changes about analyst workflow
Your checkpoint
A query cheat sheet with five annotated XQL queries and the detection question each one answers
Cortex XSOAR
Map XSOAR's core objects (incidents, playbooks, integrations, commands, content packs, layouts, classifiers) and how they relate at runtime
Explain the difference between the built-in engine and the marketplace content model, and describe how to evaluate and install a content pack safely
Write a task-based playbook outline with inputs, outputs, conditional branches, and error handling for a phishing triage use case
Describe how incident fields, mappers, and classifiers shape incoming data into a usable incident, and why mapper errors cause downstream playbook failures
Your checkpoint
A playbook design document for phishing triage listing every task, input, output, and branch condition
Cortex XSOAR
Write and debug a small Python automation script for XSOAR that uses the common execution context objects and handles errors and timeouts
Explain how integrations authenticate and how commands return results, including context output paths used by downstream tasks
Set up and explain the difference between a war room investigation and an automated playbook run, and when to hand off between them
Describe how XSOAR handles indicators, indicator types, and reputation scoring, and how that feeds playbook decisions
Your checkpoint
A working automation script plus a short write-up of its context outputs and failure modes
Cortex Xpanse & Cortex Cloud
Explain Cortex Xpanse's attack surface discovery model: how it identifies unknown internet-facing assets and attributes them to an organization
Classify Xpanse findings by risk type (exposed services, weak certificates, misconfigurations, shadow IT) and describe the remediation path for each
Describe how Xpanse findings flow into XSIAM or XSOAR for automated response, and what enrichment is needed before action
Explain Cortex Cloud's core value proposition for cloud security posture and workload protection, including how it relates to the other Cortex products
Your checkpoint
A comparison table of Xpanse and Cloud findings: what each detects, who owns remediation, and which Cortex product consumes it
Cortex XSIAM & Cortex XDR & Cortex XSOAR & Cortex Xpanse & Cortex Cloud
Review your weakest two domains using your own notes and re-explain each core concept aloud without reference material
Take timed practice sets across all five domains and log every wrong answer with the underlying concept gap, not just the correct choice
Re-derive the XSIAM, XDR, and XSOAR architecture diagrams from memory and correct any drift against your week 1-6 notes
Build a one-page cross-product integration map showing how telemetry and incidents move between XSIAM, XDR, XSOAR, Xpanse, and Cloud
Your checkpoint
A timed full-length practice run with a scored error log and a one-page cross-product integration map
Milestones
Week 2: Can explain the XSIAM incident lifecycle and detection content types from memory, and has a written runbook for one multi-stage scenario
Week 4: Writes five working XQL queries without notes and has completed one full endpoint investigation walkthrough with a justified verdict
Week 6: Has produced a complete playbook design document and a working XSOAR automation script with documented failure modes
Week 8: Scores at or above your target on a timed full-length practice run, with every missed question traced to a named concept gap