Copilot - Jailbreak Attempt Detected

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Id	e5f6a7b8-c9d0-41e2-f3a4-b5c6d7e8f9a0
Rulename	Copilot - Jailbreak Attempt Detected
Description	Detects jailbreak attempts in Copilot interactions where users are trying to bypass Copilot guardrails and security controls. This rule identifies prompt injection and LLM abuse scenarios that could lead to initial access, credential access, or system impact.
Severity	High
Tactics	InitialAccess CredentialAccess Impact
Techniques	T1078 T1110 T1565
Required data connectors	MicrosoftCopilot
Kind	Scheduled
Query frequency	5m
Query period	5m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Copilot/Analytic Rules/CopilotJailbreakAttempt.yaml
Version	1.0.0
Arm template	e5f6a7b8-c9d0-41e2-f3a4-b5c6d7e8f9a0.json

KQL

CopilotActivity
| where RecordType == "CopilotInteraction"
| where LLMEventData has "JailbreakDetected"
| extend Data = parse_json(LLMEventData)
| extend Jailbreak = tostring(Data.Messages[0].JailbreakDetected)
| where Jailbreak == "true"
| project TimeGenerated, ActorName, AIModelName, Jailbreak

YAML

OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Copilot/Analytic Rules/CopilotJailbreakAttempt.yaml
queryPeriod: 5m
description: |
  'Detects jailbreak attempts in Copilot interactions where users are trying to bypass Copilot guardrails and security controls.
  This rule identifies prompt injection and LLM abuse scenarios that could lead to initial access, credential access, or system impact.'  
triggerThreshold: 0
name: Copilot - Jailbreak Attempt Detected
triggerOperator: gt
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: FullName
    columnName: ActorName
kind: Scheduled
requiredDataConnectors:
- connectorId: MicrosoftCopilot
  dataTypes:
  - CopilotActivity
queryFrequency: 5m
tactics:
- InitialAccess
- CredentialAccess
- Impact
id: e5f6a7b8-c9d0-41e2-f3a4-b5c6d7e8f9a0
status: Available
version: 1.0.0
query: |
  CopilotActivity
  | where RecordType == "CopilotInteraction"
  | where LLMEventData has "JailbreakDetected"
  | extend Data = parse_json(LLMEventData)
  | extend Jailbreak = tostring(Data.Messages[0].JailbreakDetected)
  | where Jailbreak == "true"
  | project TimeGenerated, ActorName, AIModelName, Jailbreak  
severity: High
relevantTechniques:
- T1078
- T1110
- T1565

ARM