MODULE 1
How Activity Becomes a Record
See why a log record is a constructed view of activity rather than the activity itself.
FREE COURSE / SELF-PACED LEARNING
Security Telemetry as Evidence
Learn how time, identity, transformations and collection health affect security evidence in this free telemetry course.
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- Experience level
- Intermediate
- Curriculum
- 3 modules · 3 lessons
- Estimated reading
- 12 min
- Language
- English
Reading estimates use lesson text and an allowance for diagrams. Reflection, exercises and optional linked resources take additional time. These are estimates, not measured completion times.
KNOW WHAT YOU’RE WORKING TOWARD
What you’ll learn
- Explain how collection and transformation can change the meaning of an event.
- Evaluate time, identity and collection health before interpreting absent telemetry.
Is this the right course for you?
Who it’s for
Analysts and detection engineers evaluating the reliability of event data.
Scope and boundaries
Telemetry meaning and evidence quality. Product installation and exhaustive logging configuration are outside this course's scope.
How you’ll learn
Self-paced reading with explanatory diagrams and linked resources. Reflection and optional resource study take additional time.
Before you begin
- Detection Engineering: From Telemetry to Tuned Detections — You should understand the basic detection lifecycle and common telemetry sources.
About this course
Understand how activity becomes security evidence and how meaning, time, identity, lineage, and health can be preserved or lost along the way. The course is written for one reader and develops its ideas through continuous explanation, realistic thought experiments, and explicit distinctions between fact, assessment, and uncertainty.
TRY THE REASONING / FICTIONAL SCENARIO
When missing events do not mean inactivity
A collector stopped at 09:00 and recovered at 09:20. A dashboard shows no process events for that interval; authentication events continued from another pipeline.
Your task
Describe the visibility gap and explain which source could help reconstruct activity without treating it as equivalent evidence.
Compare your reasoning
The process pipeline has a collection gap, so the empty dashboard does not establish that no processes ran. Authentication records may establish sessions and account activity but cannot reconstruct every process. Preserve the gap, pipeline lineage and clock context in the finding; request endpoint-local records if available and authorized.
This example is a reflection exercise, not a scored assessment.
FOLLOW THE LEARNING PATH
Course curriculum
MODULE 2
Time and Identity Give Events Their Relationships
Learn to relate events without inventing order or merging different subjects.
MODULE 3
Preserve Meaning While Data Changes Shape
Use common schemas without losing source fidelity, and operate telemetry as a dependency rather than a passive feed.
BUILD ON THE RIGHT FOUNDATION
Related learning paths
These courses address different scopes. Choose the foundation or follow-on that fits your next question.
Sources and editorial review
Reviewed by Threat Intelligence Lab
Sources linked in the lessons provide context and further reading. Check the original documentation for current platform behavior and requirements.
Selected references are shown here; the lessons contain the full reading lists.
About this learning content: Courses, lessons, assessments, explanations and illustrations may be created with the help of artificial intelligence. We review and check the material and do our best to avoid incorrect or outdated information, but mistakes, omissions or ambiguous questions may remain. Please verify information before relying on it for professional, security, legal or operational decisions. Read the full notice or report an issue.