M365EXO-034: AI-based phishing detection in use (MS.EXO.11.3)
- Plataforma
- Entra ID / M365
- Categoría
- Advanced Threat Protection
- Severidad
- Medium
- Pilar de Zero Trust
- Applications & Workloads (peso 1)
- Fixtures de referencia
- 3
- Cobertura de ramas
- Observada: los fixtures prueban los veredictos que ejercitan
- Procedencia
- baseline
Qué comprueba
SCuBA MS.EXO.11.3 recommends an AI-based phishing detection tool comparable to EOP Mailbox Intelligence. Mailbox intelligence builds a model of a user's normal correspondents to detect anomalous senders that rule-based filters miss. Without an AI-based layer, novel or highly targeted phishing is more likely to evade detection.
Valor recomendado
Anti-phish policy with mailbox intelligence enabled (EnableMailboxIntelligence = True) and protection action configured
Remediación
Enable mailbox intelligence in the anti-phish policy and configure the mailbox intelligence protection action to handle detected impersonations. Apply the policy to all users. Mailbox intelligence requires a Defender for Office 365 plan; where unavailable, evaluate a comparable AI-based third-party phishing detection capability.
Veredictos probados con fixtures
Cada veredicto de esta tabla está probado por un fixture de referencia en la suite de pruebas que valida el módulo. La tabla se deriva de la última ejecución en verde; no puede editarse a mano.
| Escenario | Veredicto esperado |
|---|---|
| clean | PASS |
| known-bad | WARN |
| throttled | Not Assessed |
Mapeos a marcos de referencia
- NIST SP 800-53
- SI-8
- MITRE ATT&CK
- T1566