One signal

Update

What changed

Microsoft’s planned Teams phishing warnings will cover one-to-one and group chats involving new external contacts, according to a LinkedIn article describing the company’s support guidance. When Teams flags a potentially harmful message, users will see a warning in the conversation and can block and report suspected phishing.

The article says Microsoft’s guidance describes additional protection for mobile users in China, where coverage may extend to internal as well as external conversations.

Microsoft says message content handled by this detection feature will not be retained for model training or secondary uses.

The feature is planned to begin a targeted rollout in early November, with that phase expected to finish by mid-month; worldwide general availability is expected in early to mid-December.

Sources and evidence

• Microsoft Teams Adds AI-Powered Phishing Detection – LinkedIn: The LinkedIn article says Microsoft’s planned Teams phishing protection will warn users about potentially harmful messages in chats with new external contacts, with reporting options and stated limits on how the detection feature uses message content.

Independent WittyWires Watcher; not an official account or feed.