Use endpoint detection and response by understanding sensor coverage, telemetry, detection logic, investigation context, and proportionate response actions.

What you will be able to do

Distinguish endpoint sensor from endpoint telemetry in a realistic endpoint detection and response basics case.
Interpret the evidence and boundary associated with detection logic.
Choose an appropriate action involving investigation graph without exceeding the stated authority.
Verify endpoint response through an observable result and a documented handoff.

Frame Endpoint Detection and Response Basics

Use endpoint detection and response by understanding sensor coverage, telemetry, detection logic, investigation context, and proportionate response actions.

An endpoint tool flags a command interpreter launched by a document viewer. Before isolating the executive's laptop, the analyst must confirm telemetry completeness and likely impact.

Keep observed facts, working assumptions, authorized actions, safety boundaries, and expected evidence separate. Begin with read-only inspection and preserve the context another analyst needs to reproduce the decision.

Endpoint Sensor

An endpoint sensor observes selected process, file, network, identity, and configuration activity on its host. Within endpoint detection and response basics, this concept answers a separate question and should retain its own evidence.

Verify enrollment, policy, version, last contact, protection state, and excluded paths. Apply that action to the named case before expanding the investigation or changing protected state.

Respect this boundary: do not treat a silent sensor as proof of clean activity. The required result is specific: a controlled event appears from the correct endpoint and policy.

Endpoint Telemetry

Endpoint telemetry provides relationships such as parent process, command, file hash, account, destination, and time. Within endpoint detection and response basics, this concept answers a separate question and should retain its own evidence.

Preserve raw fields and build the activity chain around the alert. Apply that action to the named case before expanding the investigation or changing protected state.

Respect this boundary: do not publish sensitive command arguments or document contents unnecessarily. The required result is specific: the activity can be traced from initiating user action to observed outcome.

Detection Logic

Detection logic identifies activity that matches a rule, behavior, reputation, or analytical model. Within endpoint detection and response basics, this concept answers a separate question and should retain its own evidence.

Read the actual matching condition and compare it with local context and exclusions. Apply that action to the named case before expanding the investigation or changing protected state.

Respect this boundary: do not judge an alert only from its marketing severity. The required result is specific: the analyst can explain which behavior caused the signal.

Investigation Graph

An investigation graph links related objects to reveal execution, persistence, privilege, and movement paths. Within endpoint detection and response basics, this concept answers a separate question and should retain its own evidence.

Expand from the alert to parents, children, files, identities, destinations, and nearby hosts. Apply that action to the named case before expanding the investigation or changing protected state.

Respect this boundary: do not assume every connected object is malicious. The required result is specific: each relationship is backed by a recorded endpoint event.

Endpoint Response

Endpoint response may isolate a host, stop a process, quarantine a file, collect evidence, or restrict an identity. Within endpoint detection and response basics, this concept answers a separate question and should retain its own evidence.

Choose an authorized action from confidence, impact, evidence, and service continuity. Apply that action to the named case before expanding the investigation or changing protected state.

Respect this boundary: do not isolate critical infrastructure without checking safety and recovery. The required result is specific: the action reduces exposure and its effect is verified independently.

Apply Endpoint Detection and Response Basics to One Case

Use the case as a bounded investigation: An endpoint tool flags a command interpreter launched by a document viewer. Before isolating the executive's laptop, the analyst must confirm telemetry completeness and likely impact.

First, verify enrollment, policy, version, last contact, protection state, and excluded paths. Then, preserve raw fields and build the activity chain around the alert. Keep both observations in the case record before choosing the next step.

Next, read the actual matching condition and compare it with local context and exclusions. After that, expand from the alert to parents, children, files, identities, destinations, and nearby hosts. Finish only after you choose an authorized action from confidence, impact, evidence, and service continuity.

Recap Before Practice and Prove

Endpoint Sensor: An endpoint sensor observes selected process, file, network, identity, and configuration activity on its host. In practice, verify enrollment, policy, version, last contact, protection state, and excluded paths. Preserve the boundary: do not treat a silent sensor as proof of clean activity.

Endpoint Telemetry: Endpoint telemetry provides relationships such as parent process, command, file hash, account, destination, and time. In practice, preserve raw fields and build the activity chain around the alert. Preserve the boundary: do not publish sensitive command arguments or document contents unnecessarily.

Detection Logic: Detection logic identifies activity that matches a rule, behavior, reputation, or analytical model. In practice, read the actual matching condition and compare it with local context and exclusions. Preserve the boundary: do not judge an alert only from its marketing severity.

Investigation Graph: An investigation graph links related objects to reveal execution, persistence, privilege, and movement paths. In practice, expand from the alert to parents, children, files, identities, destinations, and nearby hosts. Preserve the boundary: do not assume every connected object is malicious.

Endpoint Response: Endpoint response may isolate a host, stop a process, quarantine a file, collect evidence, or restrict an identity. In practice, choose an authorized action from confidence, impact, evidence, and service continuity. Preserve the boundary: do not isolate critical infrastructure without checking safety and recovery.