Trusted Sharing for Teams Chat

Every M365 link shared in Teams becomes a Trusted Share, enforcing policy and protecting every file interaction.

The Challenge

Ungoverned External Sharing

External sharing inside Teams has no native enforcement layer.

Microsoft Teams was designed for internal collaboration. External file exchange happens through workarounds, leaving M365 security investments only partially applied to the channel users rely on most.

"Anyone" links and guest accounts bypass governance.

To keep collaboration moving, users default to public links or invite external participants as guest accounts. Both expand the attack surface and create blind spots that security teams cannot consistently control or revoke.

Email becomes the default fallback when Teams cannot share externally.

When users need to share a file with someone outside the organization, they leave Microsoft Teams for email. The conversation context is lost, the file lives outside the M365 tenant, and the audit trail goes dark.

The Solution

Native Sharing. Governed Access.

Trusted Shares created automatically when files are shared in Microsoft Teams chats and meetings.

Trusted Share notification in Microsoft Teams chat showing the shared file Vendor_Questionnaire.docx, the sender Henry Miller, and access options for M365 App and Portal.

Native Teams Collaboration

SharePoint and OneDrive files are shared directly inside Microsoft Teams chats and meetings. Conversation context stays intact, the file stays in the M365 tenant, and the workflow stays where the team is already working.

Data Attributes of Intellectual Property and Controlled Unclassified Information are turned on and applied, the Header says CUI and the Footer says Proprietary: Sensitive, authorized distribution only & CUI

Trusted External Access

External participants access shared content through identity-verified, time-limited links governed by the organization's Access Link policy. Guest accounts and "Anyone" links are no longer needed for external file exchange.

A files properties are shown, displaying MSIP_Label_CUI is value True, and MSIP_Label_IP is value True.

Centralized Sharing Visibility

Every external file shared in Teams is logged through the same audit fabric as the rest of M365. The blind spots that came with email-based and link-based workarounds close.

Bring Secure Sharing to Where Your Teams Work

Schedule a conversation to explore how eSHARE Trusted Sharing eliminates friction and keeps external collaboration inside the tools you're already using.