Collaboration Suite Assistant

A collaboration suite assistant is an artificial intelligence system embedded into workplace tools such as email, chat, documents, meetings, calendars, and shared drives. It may summarize content, draft replies, search documents, identify actions, or perform tasks across an employee’s workspace.

This deployment pattern creates an elevated exposure condition because the assistant processes both trusted internal content and untrusted inbound material. Emails, calendar invites, shared documents, chat messages, and meeting notes may originate from external parties, compromised identities, or low-trust sources before entering the assistant’s context.

The primary risk is zero-click or low-interaction indirect prompt injection. A malicious instruction may be hidden in an inbound message, document, meeting invite, or chat thread and remain dormant until the assistant summarizes, searches, drafts, or acts on that content.

A related risk is excessive tenant reach. If broad connector permissions, service identities, shared indexes, or weak query-time access checks allow retrieval across the wider tenant, one mailbox, thread, document, or meeting record may expose information beyond the employee’s entitlement.

Investigators should review the assistant’s directive, tenant permissions, connectors, retrieval scope, logs, tool calls, rendered links, external content handling, and source provenance. Particular attention should be given to embedded instructions, retrieval outside the employee’s entitlement, and outputs that transmit, summarize, or link to sensitive material.

Investigative Relevance

Collaboration suite assistants are relevant to SITM because they sit inside ordinary organizational workflows and process the communications employees rely on every day. Their retrieval, summarization, and action capability may exceed what the employee expects or is authorized to access.