New file protection in Teams chat and channels blocks unsafe content [MC1148540]
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New file protection in Teams chat and channels blocks unsafe content [MC1148540]

Message ID: MC1148540 IntroductionMicrosoft Teams is introducing a new protection feature that blocks messages containing weaponizable file types—such as executables—in chats and channels. This helps reduce the risk of malware and file-based attacks by preventing unsafe content from being shared.…
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Microsoft Teams: Malicious URL Protection for Teams Chat and Channels [MC1148539]
Posted inMicrosoft Teams

Microsoft Teams: Malicious URL Protection for Teams Chat and Channels [MC1148539]

Message ID: MC1148539 IntroductionMicrosoft Teams is introducing enhanced protection against phishing attacks by detecting and warning users about malicious URLs shared in Teams chats and channels. This feature helps users make safer decisions before clicking potentially harmful links. This message…
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Microsoft Teams: Updated sender email address for channel guest invitations [MC1148535]
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Microsoft Teams: Updated sender email address for channel guest invitations [MC1148535]

Message ID: MC1148535 Introduction To support backend service improvements and enhance email deliverability, Microsoft Teams is updating the default sender address used for guest access invitations to Teams channels. This change helps ensure consistent delivery and recognition of invitation emails.…
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(Updated) Microsoft Teams: Android Open Source Project (AOSP) – Device Management auto updates [MC1066157]
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(Updated) Microsoft Teams: Android Open Source Project (AOSP) – Device Management auto updates [MC1066157]

Message ID: MC1066157 (Updated) Updated September 5, 2025: We have updated the timeline. Thank you for your patience.Android devices with Microsoft Teams will be commencing auto updates for firmware in order to migrate to Microsoft Intune Android Open Source Project…
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(Updated) Microsoft Teams Copilot without transcription becomes default for meetings – conversation history now persists [MC1139493]
Posted inMicrosoft Teams

(Updated) Microsoft Teams Copilot without transcription becomes default for meetings – conversation history now persists [MC1139493]

Message ID: MC1139493 (Updated) Updated September 5, 2025: We have updated the timeline. Thank you for your patience.IntroductionWe’re updating the default behavior of Microsoft Teams Copilot in meetings. Copilot without transcription will become the default mode for newly scheduled Teams…
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Microsoft Teams: User reporting for incorrectly identified security concerns [MC1147984]
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Microsoft Teams: User reporting for incorrectly identified security concerns [MC1147984]

Message ID: MC1147984 IntroductionMicrosoft Teams now enables users to report messages they believe were incorrectly flagged as security threats in chats and channels. This capability is available to organizations with Microsoft Defender for Office 365 Plan 2 or Microsoft Defender…
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