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Microsoft Defender for Office 365’s new Language AI for Phish model is now live, enhancing email security by detecting and stopping sophisticated phishing attacks before they reach users. This AI model is trained on real-world phishing attempts, building upon the BEC (Business Email Compromise) protection announced at Ignite 2024.
🔗 Reference:
You Should Know:
- How to Enable Microsoft Defender for Office 365 AI Phishing Protection
To activate the new AI phishing detection:
Set-MDOPhishPolicy -Identity "StandardPreset" -EnableLanguageAIPhishProtection $true
2. Verify Phishing Detection Status
Check if the AI model is active:
Get-MDOPhishPolicy | Select-Object Name, LanguageAIPhishProtectionEnabled
3. Simulate a Phishing Attack for Testing
Use Attack Simulator in Microsoft Defender:
New-MDOSimulation -Name "AI Phish Test" -PayloadType "CredentialHarvesting" -LaunchNow
4. Check Detected Phishing Emails
List recent phishing attempts blocked by AI:
Get-MDOTenantPhishSubmission -Top 100 | Where-Object { $_.DetectionMethod -eq "LanguageAIModel" }
- Linux Command to Analyze Phishing URLs (If Email is Forwarded to a SIEM)
Extract URLs from suspicious emails:
grep -Eo '(http|https)://[^"]+' phishing_email.eml | sort -u
- Windows Event Log Check for Phishing Alerts
Get-WinEvent -LogName "Microsoft-Windows-Windows Defender/Operational" | Where-Object { $_.Id -eq 1116 }
7. Enhance Detection with Custom Indicators
Add known phishing domains to blocklist:
New-MDOThreatIntelligenceIndicator -DomainName "malicious-site.com" -Action Block
What Undercode Say:
Microsoft’s integration of Language AI for Phish significantly improves zero-day phishing detection. However, organizations should:
– Regularly update phishing policies
– Train employees on identifying AI-generated phishing lures
– Combine AI with manual threat hunting for maximum security
Expected Output:
Name LanguageAIPhishProtectionEnabled - - StandardPreset True
Prediction:
As AI-powered phishing evolves, expect Defender for Office 365 to introduce real-time adaptive learning, further reducing false positives while catching polymorphic phishing campaigns.
Would you like additional commands for integrating Defender with SIEM tools? Let me know!
References:
Reported By: Cohenmelanie Microsoft – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
