Alert Policies Defender Portal
The article now explains how to select a built-in rule on the Alert tuning page and choose Disable, with a supporting screenshot.
Daily Defender NewsA cross-product view of Microsoft Defender changes related to Incidents and response.
The article now explains how to select a built-in rule on the Alert tuning page and choose Disable, with a supporting screenshot.
Microsoft Defender XDR will allow alert tuning rules to target specific detection sources for finer control. This feature rolls out in public preview mid-October 2026 and general availability mid-November 2026. Existing rules apply to all sources unless updated. No action is needed unless customization is desired.
The page now highlights required Azure portal permissions or OT sensor access, clarifies migration guidance for alert exclusion rules, and warns that deleting custom alert rules is irreversible. Links and wording were also updated.
The page’s publication date and custom metadata were updated. It also includes a warning that reverting to default is irreversible and discards threshold-level changes.
The playbook now more explicitly covers true and false positives, compromised accounts, rules without filters, activity before suspicious rules were created, and related alerts. Metadata and the publication date were also updated.
The page updates wording, metadata, and investigation guidance. Sample queries are now described as covering new connector creation, connector-to-mail-flow correlation, and external domain detection, with added admin logon checks.
The article now explains MFA fatigue, clarifies query descriptions and alert references, and adds a Kusto query to check whether MFA strong authentication requirements were removed from Microsoft Entra ID accounts.
The page title and headings now explicitly reference Microsoft Defender XDR. An Overview section and an anchor for the available playbooks section were added, and the publication date was updated.
The article updates its date and wording, and adds clearer instructions for the investigation queries. Administrators are told to set the `ip_address` variable, use an eight-hour lookback, and review legacy-protocol indicators, successful sign-ins, and related cloud app activity.
The playbook now presents alert-review steps as a numbered sequence, clarifies terminology for the forwarding user and recipient lists, and refines investigation and remediation wording. Metadata and the documentation date were also updated.
The article now uses clearer terminology for investigating suspicious rule parameters, identifying the IP involved in inbox rule creation, and remediating account compromise. Its metadata and publication date were also updated.
The Microsoft Entra permissions description was clarified, and a Related content link was added for managing incidents and alerts in Microsoft Defender XDR.
The article now notes that some default alert policies contain filters not shown in the Microsoft Defender portal. These filters can affect whether activities match conditions and trigger alerts, and the article provides a PowerShell command to view them.
The documentation explains that lastUpdateTime identifies incidents changed after creation. It also states that severity may change when alerts are added or removed, and that the incident resource does not provide severity-change history.
The page title and description now refer to Microsoft Defender XDR, setup step numbering was corrected, and a warning explains that deleting a notification rule permanently stops its future email notifications.
The article was rewritten for clarity, explicitly states that Security Copilot access is required, and clarifies that resolving an incident before report generation helps capture all actions. Links, metadata, and descriptions were also updated.
The page date and custom metadata were updated, and the Microsoft Sentinel API description was clarified to identify the Incidents operation group and its get, create, update, and delete operations.
The article was refreshed with clearer wording, a new introductory step description, updated links, and reorganized related content. Metadata and the publication date were also updated.
The article now directs readers to its alert details properties table for customization guidance and for identifying preview-labeled properties. It also updates the publication metadata and related-content introduction.
The article now clarifies the reference for deleting a single incident, adds a request for deleting an incident by ID, and updates its metadata and links.
The article now highlights prerequisites, explicitly lists Email, Syslog server, and NetWitness action types, and adds a certificate-validation troubleshooting subsection. Metadata and heading formatting were also updated.
The Microsoft Sentinel incident navigation and triage page now introduces required roles and permissions and provides steps for navigating to and triaging incidents. Its date and authoring metadata were also updated.
The documentation now states that the incident list defaults to incidents from the last week instead of the last six months. The listed 30-day option was removed.
The documentation now explicitly requires creating a Defender for Cloud Apps API token before creating playbooks and using that token in the connection’s authentication settings.
The page adds introductory steps for opening and using Action center, updates the source-details heading and anchor, reformats the remediation-actions link, and refreshes the publication date.
The article title and section headings were revised, metadata was refreshed, and related-content links were updated and reworded.
The article now clarifies the Related incident step, adds navigation support, updates the date and metadata, and provides additional incident-management references.
Three related links now point to updated Microsoft Learn and Microsoft Support URLs for sensitivity labels and DLP conditions.
The article adds a permissions prerequisite, clarifies how to open the move panel and select alerts, and updates wording around feedback and saved moves.
Updated punctuation, list formatting, wording, role-based guidance formatting, and the link text for alert correlation and incident merging documentation.
Updated the article’s wording for Azure portal alerts, source and destination devices, remediation steps, and learning or unlearning alert traffic. The free-account link and document metadata were also refreshed.
The article now labels supported alert types more clearly, separates prerequisite guidance by alert category, updates RBAC terminology and links, and renames feedback guidance links. It also clarifies that existing Phishing Triage Agent users can enable additional alert types through configuration.
The article’s date was updated, wording was refined, an investigation-steps introduction was added, and references to Advanced hunting and business email compromise were made clearer.
The documentation now refers to Microsoft Defender instead of Microsoft Defender XDR in descriptions of Security Copilot-powered incident summaries and Defender correlation capabilities.
The documented supported value `Cryptominor` was corrected to `Cryptominer` in the alert normalization schema.
Microsoft Defender for Identity now includes a health alert for missing domain controller network traffic, helping administrators detect traffic collection issues affecting visibility. The alert appears in sensor health tabs, requires no pre-rollout action, and guides troubleshooting if triggered after rollout. No impact on end users or compliance.
Updated Microsoft Defender documentation in defender-xdr/alert-policies.md.
Updated Microsoft Defender documentation in defender-office-365/alert-policies-defender-portal.md.
Updated Microsoft Defender documentation in defender-endpoint/investigate-ip.md.
Updated Microsoft Defender documentation in defender-business/mdb-review-remediation-actions.md.
Updated Microsoft Defender documentation in defender-endpoint/information-protection-investigation.md.
Updated Microsoft Defender documentation in defender-endpoint/auto-investigation-action-center.md.
Added Microsoft Defender documentation in defender-xdr/defender-experts/defender-experts-hunting-graph-api.md.
Updated Microsoft Defender documentation in defender-xdr/alert-classification-password-spray-attack.md.
Updated Microsoft Defender documentation in defender-xdr/alert-grading-playbook-email-forwarding.md.
Updated Microsoft Defender documentation in defender-xdr/alert-grading-playbook-inbox-forwarding-rules.md.
Updated Microsoft Defender documentation in defender-xdr/alert-classification-playbooks.md.
Updated Microsoft Defender documentation in defender-xdr/alert-classification-suspicious-ip-password-spray.md.
Updated Microsoft Defender documentation in defender-xdr/alerts-incidents-correlation.md.
Updated Microsoft Defender documentation in defender-xdr/session-cookie-theft-alert.md.
Updated Microsoft Defender documentation in defender-xdr/alert-grading-playbook-inbox-manipulation-rules.md.
Updated Microsoft Defender documentation in defender-office-365/alert-policies-defender-portal.md.
Updated Microsoft Defender documentation in defender-xdr/api-incident.md.
Updated Microsoft Defender documentation in defender-xdr/configure-email-notifications.md.
Updated Microsoft Defender documentation in defender-xdr/security-copilot-m365d-create-incident-report.md.
Updated Microsoft Defender documentation in sentinel/create-tasks-automation-rule.md.
Updated Microsoft Defender documentation in defender-xdr/m365d-notifications-incidents.md.
Updated Microsoft Defender documentation in sentinel/manage-soc-with-incident-metrics.md.
Added Microsoft Defender documentation in unified-secops-platform/migrate-sentinel-incident-creation-rules-alert-grouping.md.
Updated Microsoft Defender documentation in defender-xdr/move-alert-to-another-incident.md.
Updated Microsoft Defender documentation in defender-xdr/m365d-action-center.md.
Updated Microsoft Defender documentation in unified-secops-platform/plan-incident-response.md.
Updated Microsoft Defender documentation in defender-xdr/security-alert-triage-agent.md.
Updated Microsoft Defender documentation in sentinel/sentinel-security-copilot-incident-summary.md.
Updated Microsoft Defender documentation in defender-xdr/security-copilot-m365d-incident-summary.md.
Updated Microsoft Defender documentation in sentinel/normalization-schema-alert.md.
Updated Microsoft Defender documentation in defender-xdr/m365d-autoir-actions.md.
Updated Microsoft Defender documentation in sentinel/security-alert-schema-differences.md.
Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/how-to-accelerate-alert-incident-response.md.
Updated Microsoft Defender documentation in defender-xdr/access-den-graph-api.md.
Updated Microsoft Defender documentation in defender-for-identity/advanced-settings.md.
Updated Microsoft Defender documentation in sentinel/automation/create-tasks-playbook.md.
Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/how-to-forward-alert-information-to-partners.md.
Updated Microsoft Defender documentation in defender-for-cloud-apps/flow-integration.md.
Updated Microsoft Defender documentation in defender-xdr/advanced-hunting-link-to-incident.md.
Updated Microsoft Defender documentation in defender-xdr/advanced-hunting-link-to-incident.md.
Updated Microsoft Defender documentation in sentinel/automation/migrate-playbooks-to-automation-rules.md.
Updated Microsoft Defender documentation in sentinel/normalization-schema-alert.md.
Updated Microsoft Defender documentation in sentinel/work-with-tasks.md.
Updated Microsoft Defender documentation in sentinel/create-incident-manually.md.
Updated Microsoft Defender documentation in sentinel/customize-alert-details.md.
Updated Microsoft Defender documentation in defender-endpoint/investigate-ip.md.
Updated Microsoft Defender documentation in defender-endpoint/information-protection-investigation.md.
Updated Microsoft Defender documentation in sentinel/incident-investigation.md.
Updated Microsoft Defender documentation in defender-xdr/alert-policies.md.
Updated Microsoft Defender documentation in defender-xdr/alert-policies.md.
Updated Microsoft Defender documentation in defender-for-cloud/quickstart-automation-alert.md.
Updated Microsoft Defender documentation in defender-for-cloud/episode-thirty-five.md.
Updated Microsoft Defender documentation in defender-endpoint/auto-investigation-action-center.md.
Updated Microsoft Defender documentation in defender-for-cloud/alert-validation.md.
Added Microsoft Defender documentation in defender-xdr/manually-create-incident.md.
Updated Microsoft Defender documentation in defender-for-cloud/quickstart-automation-alert.md.
Added Microsoft Defender documentation in defender-for-cloud/episode-thirty-five.md.
Added Microsoft Defender documentation in defender-xdr/sop-documentation-template.md.
Updated Microsoft Defender documentation in defender-business/mdb-review-remediation-actions.md.
Updated Microsoft Defender documentation in defender-xdr/session-cookie-theft-alert.md.
Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/alert-engine-messages.md.
Updated Microsoft Defender documentation in defender-xdr/alert-classification-suspicious-ip-password-spray.md.
Updated Microsoft Defender documentation in defender-xdr/alert-policies.md.
Updated Microsoft Defender documentation in defender-office-365/alert-policies-defender-portal.md.
Updated Microsoft Defender documentation in defender-endpoint/auto-investigation-action-center.md.
Updated Microsoft Defender documentation in defender-xdr/configure-email-notifications.md.
Updated Microsoft Defender documentation in defender-xdr/m365d-notifications-incidents.md.
Updated Microsoft Defender documentation in defender-xdr/m365d-action-center.md.
Updated Microsoft Defender documentation in defender-endpoint/information-protection-investigation.md.
Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/alert-engine-messages.md.
Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/alert-engine-messages.md.
Updated Microsoft Defender documentation in sentinel/audit-track-tasks.md.
Updated Microsoft Defender documentation in sentinel/incident-navigate-triage.md.
Updated Microsoft Defender documentation in sentinel/collaborate-in-microsoft-teams.md.
Updated Microsoft Defender documentation in sentinel/automation/create-tasks-playbook.md.
Updated Microsoft Defender documentation in sentinel/create-tasks-automation-rule.md.
Updated Microsoft Defender documentation in sentinel/customize-alert-details.md.
Updated Microsoft Defender documentation in sentinel/tutorial-extract-incident-entities.md.
Updated Microsoft Defender documentation in sentinel/manage-soc-with-incident-metrics.md.
Updated Microsoft Defender documentation in sentinel/security-alert-schema-differences.md.
Updated Microsoft Defender documentation in sentinel/incident-investigation.md.
Updated Microsoft Defender documentation in sentinel/automation/migrate-playbooks-to-automation-rules.md.
Updated Microsoft Defender documentation in sentinel/normalization-schema-alert.md.
Updated Microsoft Defender documentation in sentinel/sentinel-security-copilot-incident-summary.md.