Microsoft Teams is set to introduce a new security feature in early November 2026 that leverages AI to detect phishing attempts and other malicious activities in messages. This feature, known as AI-powered phishing detection, will be part of a broader security rollout that will reach general availability by mid-December. Here are three standout recommendations and actionable tips for using this new feature effectively and securely.
Standout Recommendations
- Enable External First-Contact Chat Protection: The new phishing detection feature will initially focus on external first-contact chats, which are high-risk scenarios. Ensure that this feature is enabled for your Teams environment to maximize its effectiveness. IT administrators won’t need to take any additional action to activate this feature, making it a straightforward addition to your security stack.
- Understand Conversation Context: The AI-powered detection system analyzes conversation context, allowing it to identify suspicious behavior that might not be immediately apparent from traditional indicators such as malicious links or files. Familiarize yourself with this feature to better understand how it works and to anticipate potential phishing attempts.
- Monitor and Adjust: As with any new security feature, it’s important to monitor its effectiveness and adjust your security protocols as needed. Keep an eye on any false positives or false negatives and refine your security policies to optimize the new detection system.
Actionable Tips
- Enable External First-Contact Chat Protection: To start, enable the AI-powered phishing detection feature for external first-contact chats. This will help you stay ahead of potential threats and ensure that your Teams environment remains secure.
- Educate Your Team: Phishing attempts often rely on social engineering tactics. Educate your team about the signs of phishing and how to recognize suspicious messages. This proactive approach can significantly reduce the risk of falling victim to phishing attempts.
- Regularly Update and Patch: Ensure that your Teams environment is up to date with the latest security patches and updates. This not only helps protect against known vulnerabilities but also keeps your security features effective and aligned with the latest threat intelligence.
By following these recommendations and tips, you can leverage the new AI-powered phishing detection feature to enhance the security of your Microsoft Teams environment and protect your organization from potential phishing and social engineering attacks.