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security-incident-update.md

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title Update incident
description Update the properties of an incident object.
ms.date 2/25/2025
author LeonardoMele-MSFT
ms.localizationpriority medium
ms.subservice security
doc_type apiPageType

Update incident

Namespace: microsoft.graph.security

Update the properties of an incident object.

[!INCLUDE national-cloud-support]

Permissions

Choose the permission or permissions marked as least privileged for this API. Use a higher privileged permission or permissions only if your app requires it. For details about delegated and application permissions, see Permission types. To learn more about these permissions, see the permissions reference.

[!INCLUDE permissions-table]

[!INCLUDE rbac-security-alerts-apis-write]

HTTP request

PATCH /security/incidents/{incidentId}

Request headers

Name Description
Authorization Bearer {token}. Required. Learn more about authentication and authorization.
Content-Type application/json. Required.

Request body

[!INCLUDE table-intro]

Property Type Description
assignedTo String Owner of the incident, or null if no owner is assigned. Free editable text.
classification microsoft.graph.security.alertClassification The specification for the incident. The possible values are: unknown, falsePositive, truePositive, informationalExpectedActivity, unknownFutureValue.
customTags String collection Array of custom tags associated with an incident.
description String Description of the incident.
determination microsoft.graph.security.alertDetermination Specifies the determination of the incident. The possible values are: unknown, apt, malware, securityPersonnel, securityTesting, unwantedSoftware, other, multiStagedAttack, compromisedAccount, phishing, maliciousUserActivity, notMalicious, notEnoughDataToValidate, confirmedUserActivity, lineOfBusinessApplication, unknownFutureValue.
displayName String The incident name.
severity microsoft.graph.security.alertSeverity Indicates the possible impact on assets. The higher the severity, the bigger the impact. Typically, higher severity items require the most immediate attention. The possible values are: unknown, informational, low, medium, high, unknownFutureValue.
resolvingComment string User input that explains the resolution of the incident and the classification choice. It contains free editable text.
status microsoft.graph.security.incidentStatus The status of the incident. The possible values are: active, resolved, redirected, unknownFutureValue.
summary String The overview of an attack. When applicable, the summary contains details of what occurred, impacted assets, and the type of attack.

Response

If successful, this method returns a 200 OK response code and an updated microsoft.graph.security.incident object in the response body.

Examples

Request

The following example shows a request.

HTTP

PATCH https://graph.microsoft.com/v1.0/security/incidents/29
Content-Type: application/json

{
    "classification": "TruePositive",
    "determination": "MultiStagedAttack",
    "customTags": [
      "Demo"
    ]
}

C#

[!INCLUDE sample-code] [!INCLUDE sdk-documentation]

Go

[!INCLUDE sample-code] [!INCLUDE sdk-documentation]

Java

[!INCLUDE sample-code] [!INCLUDE sdk-documentation]

JavaScript

[!INCLUDE sample-code] [!INCLUDE sdk-documentation]

PHP

[!INCLUDE sample-code] [!INCLUDE sdk-documentation]

PowerShell

[!INCLUDE sample-code] [!INCLUDE sdk-documentation]

Python

[!INCLUDE sample-code] [!INCLUDE sdk-documentation]

Response

The following example shows the response.

Note: The response object shown here might be shortened for readability.

HTTP/1.1 200 OK
Content-Type: application/json

{
    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#security/incidents/$entity",
    "id": "29",
    "tenantId": "cfcdbe43-297b-4c6b-ac7e-8d7f6befb514",
    "status": "active",
    "incidentWebUrl": "https://security.microsoft.com/incident2/29/overview?tid=cfcdbe43-297b-4c6b-ac7e-8d7f6befb514",
    "redirectIncidentId": null,
    "displayName": "Multi-stage incident involving Execution & Command and control on one endpoint",
    "createdDateTime": "2026-01-22T12:09:23.1433333Z",
    "lastUpdateDateTime": "2026-02-25T16:29:33.1Z",
    "assignedTo": "admin@contoso.com",
    "classification": "truePositive",
    "determination": "multiStagedAttack",
    "severity": "high",
    "customTags": [
        "Demo"
    ],
    "systemTags": [],
    "description": "Microsoft observed Raspberry Robin worm activity spreading through infected USB devices on multiple endpoints in your environment.",
    "lastModifiedBy": "API-App:admin@contoso.com",
    "resolvingComment": null,
    "summary": "Defender Experts has identified malicious activity. This incident has been raised for your awareness and should be investigated as usual.",
    "priorityScore": 100,
    "comments": []
}