Update alert

Namespace: microsoft.graph

Update the properties of an alert object in an organization based on the specified alert id property.


One of the following permissions is required to call this API. To learn more, including how to choose permissions, see Permissions.

Permission type Permissions (from least to most privileged)
Delegated (work or school account) SecurityAlert.ReadWrite.All
Delegated (personal Microsoft account) Not supported.
Application SecurityAlert.ReadWrite.All

HTTP request

PATCH /security/alerts_v2/{alertId}

Request headers

Name Description
Authorization Bearer {token}. Required.
Content-Type application/json. Required.

Request body

In the request body, supply only the values for properties that should be updated. Existing properties that are not included in the request body will maintain their previous values or be recalculated based on changes to other property values.

The following table specifies the properties that can be updated.

Property Type Description
status microsoft.graph.security.alertStatus The status of the alert. Possible values are: new, inProgress, resolved, unknownFutureValue.
classification microsoft.graph.security.alertClassification Specifies the classification of the alert. Possible values are: unknown, falsePositive, truePositive, informationalExpectedActivity, unknownFutureValue.
determination microsoft.graph.security.alertDetermination Specifies the determination of the alert. Possible values are: unknown, apt, malware, securityPersonnel, securityTesting, unwantedSoftware, other, multiStagedAttack, compromisedUser, phishing, maliciousUserActivity, clean, insufficientData, confirmedUserActivity, lineOfBusinessApplication, unknownFutureValue.
assignedTo String Owner of the incident, or null if no owner is assigned.


If successful, this method returns a 200 OK response code and an updated alert object in the response body.



The following is an example of a request.

PATCH https://graph.microsoft.com/v1.0/security/alerts_v2/da637551227677560813_-961444813
Content-Type: application/json
Content-length: 2450

    "assignedTo": "secAdmin@contoso.onmicrosoft.com",
    "classification": "truePositive",
    "determination": "malware",
    "status": "inProgress"


The following is an example of the response

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

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

    "@odata.type": "#microsoft.graph.security.alert",
    "id": "da637551227677560813_-961444813",
    "providerAlertId": "da637551227677560813_-961444813",
    "incidentId": "28282",
    "status": "inProgress",
    "severity": "low",
    "classification": "truePositive",
    "determination": "malware",
    "serviceSource": "microsoftDefenderForEndpoint",
    "detectionSource": "antivirus",
    "detectorId": "e0da400f-affd-43ef-b1d5-afc2eb6f2756",
    "tenantId": "b3c1b5fc-828c-45fa-a1e1-10d74f6d6e9c",
    "title": "Suspicious execution of hidden file",
    "description": "A hidden file has been launched. This activity could indicate a compromised host. Attackers often hide files associated with malicious tools to evade file system inspection and defenses.",
    "recommendedActions": "Collect artifacts and determine scope\n�\tReview the machine timeline for suspicious activities that may have occurred before and after the time of the alert, and record additional related artifacts (files, IPs/URLs) \n�\tLook for the presence of relevant artifacts on other systems. Identify commonalities and differences between potentially compromised systems.\n�\tSubmit relevant files for deep analysis and review resulting detailed behavioral information.\n�\tSubmit undetected files to the MMPC malware portal\n\nInitiate containment & mitigation \n�\tContact the user to verify intent and initiate local remediation actions as needed.\n�\tUpdate AV signatures and run a full scan. The scan might reveal and remove previously-undetected malware components.\n�\tEnsure that the machine has the latest security updates. In particular, ensure that you have installed the latest software, web browser, and Operating System versions.\n�\tIf credential theft is suspected, reset all relevant users passwords.\n�\tBlock communication with relevant URLs or IPs at the organization�s perimeter.",
    "category": "DefenseEvasion",
    "assignedTo": "secAdmin@contoso.onmicrosoft.com",
    "alertWebUrl": "https://security.microsoft.com/alerts/da637551227677560813_-961444813?tid=b3c1b5fc-828c-45fa-a1e1-10d74f6d6e9c",
    "incidentWebUrl": "https://security.microsoft.com/incidents/28282?tid=b3c1b5fc-828c-45fa-a1e1-10d74f6d6e9c",
    "actorDisplayName": null,
    "threatDisplayName": null,
    "threatFamilyName": null,
    "mitreTechniques": [
    "createdDateTime": "2021-04-27T12:19:27.7211305Z",
    "lastUpdateDateTime": "2021-05-02T14:19:01.3266667Z",
    "resolvedDateTime": null,
    "firstActivityDateTime": "2021-04-26T07:45:50.116Z",
    "lastActivityDateTime": "2021-05-02T07:56:58.222Z",
    "comments": [],
    "evidence": []