Microsoft Teams: QR code protection for messages from external users

🚨 The Signal: Microsoft Teams will blur QR codes from external senders by default to prevent phishing. Users must manually reveal them, enhancing protection against malicious QR code scams without admin configuration.

The Impact

Organizations allowing external Teams communication are affected, reducing the risk of users scanning malicious QR codes from untrusted sources.

• End Users: Reduced risk of phishing via malicious QR codes.
• Security Teams: Enhanced default protection against external social engineering.
• Teams Administrators: No configuration required, but awareness for user support.
• Organizations: Improved security posture against external threats.

The Action

1. Communicate to end-users about the new QR code blurring feature in Teams and the importance of verifying external senders before revealing.
2. Update internal security awareness training materials to include guidance on safe interaction with QR codes from external sources.

Domain: Teams · Impact: low · Workload: Teams