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Topic

External Sender Controls

Treating messages and attachments from outside the organization differently from internal traffic as a default posture.

Current clusters

security1 distinct publisher

Teams will hide external-sender QR codes behind a user click from October 2026

Microsoft 365 Roadmap entry 570439 obscures images containing QR codes from outside the tenant until the recipient reveals them. That puts the last check on the person in the chat window.

Publishers:helpnetsecurity.com

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Evidence52
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Hype gap+42
Incentives66

Confidence55

External Sender Controls — Clarity Today