Microsoft Teams Security & Fundamentals: What's New at Microsoft Ignite 2025
Microsoft Ignite 2025 delivered major advancements in the security and administration capabilities of Microsoft Teams. With new threat protections, deeper analytics, and improved admin automation, Teams continues to strengthen its foundation for secure, large-scale enterprise collaboration.
Copilot in the Teams Admin Center
Copilot now assists administrators directly within the Teams Admin Center.
Key functions include:
- Reviewing call quality issues
- Summarising policy configurations
- Highlighting misconfigurations
- Suggesting optimisation steps
- Helping set up protected meetings
This accelerates troubleshooting and reduces admin workload.
Teams Admin Agent (Technical Acceptance Program)
The new Teams Admin Agent automates recurring administrative workflows, including:
- Policy enforcement
- User provisioning operations
- Meeting monitoring
- Compliance and governance checks
This agent significantly reduces time spent on repetitive manual tasks.
Enhanced Meeting Troubleshooting
Teams now provides a modernised troubleshooting experience with:
- Clear diagnostic flows
- Actionable guidance
- Detailed telemetry for audio/video issues
- Identification of VDI-related quality problems
These enhancements help IT departments resolve issues faster and with better accuracy.
Meeting Best Practice Configurations (Public Preview)
Teams now identifies environments where meeting quality is impacted by incorrect client or VDI configurations and proactively surfaces:
- Affected users
- Impacted locations
- Recommended optimisations
This makes it easier for administrators to align their setup with Microsoft best practices.
Domain Impersonation Protection
A new security layer protects users by validating message sender domains in real time, reducing the risk of:
- Spoofing
- Impersonation
- Social engineering attacks
When a domain appears suspicious, Teams warns users immediately.
Weaponizable File Type Protection
Teams now automatically blocks risky file types in chat and channels, including:
- Executable files
- Script-based files
- Known malware vectors
This protection is enforced before the user can open or download the file.
Malicious URL Detection
Teams performs real-time scanning of URLs shared across chat and channels, alerting users about:
- Phishing attempts
- Malware-infected sites
- Fraudulent domains
This protection is enabled across Windows, macOS, Web, iOS, and Android.
User Reporting for Incorrect Security Flags
If Teams incorrectly flags content as unsafe, users can now report false positives directly from:
- Chats
- Channels
- Meeting chats
This feedback helps improve detection accuracy.
Final Thoughts
Ignite 2025 delivered major enhancements that strengthen Teams’ security posture, streamline administration, and help organisations proactively detect and resolve issues. These updates help ensure that Microsoft Teams remains a secure and resilient collaboration platform at enterprise scale.
Next — and final — article in the Ignite 2025 series:
Microsoft Teams Platform, Developers & Frontline.