When users send or receive a private message that contains links that have been flagged as harmful, Microsoft Teams will automatically notify them.
For all Microsoft Defender for Office 365 (MDO) and Microsoft Teams enterprise customers, Microsoft will implement these new alerts for communications that contain URLs that have been identified as spam, phishing, or malware.
According to a new Microsoft 365 roadmap article, the new link protection function will be made available to the entire public in November 2025 after starting with a public preview for desktop, Android, web, and iOS users in September 2025.
We’re introducing message warnings in Microsoft Teams to assist customers stay safe from dangerous content, the company said in an incident alert posted in the Microsoft 365 message center on Wednesday.
Whether an internal or external message contains a URL marked as spam, phishing, or malware, this new functionality shows a warning banner read more about Microsoft adds malicious link warnings to Teams private chats.
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