Microsoft Teams: Migration Tool for Teams

🚨 The Signal: A new first-party tool allows migration of Slack channels and content to Microsoft Teams. This introduces a new data ingestion vector, requiring careful data governance and access control review for migrated sensitive information.

The Impact

Security teams and data owners are affected by new data ingestion, risking unclassified or over-privileged sensitive information in Teams.

• Security Teams: Risk of unclassified sensitive data entering Teams.
• Data Owners: Potential for data residency and compliance issues post-migration.
• Admins: Need to validate access controls and permissions for migrated content.
• Compliance Teams: Requirement to re-evaluate data handling policies for new data sources.

The Action

1. Review existing data classification and retention policies for Teams.
2. Develop a pre-migration data assessment strategy for Slack content.
3. Implement strict access control policies for migrated Teams channels.
4. Audit migrated content for sensitive information and apply appropriate labels.
5. Communicate data handling expectations to users of newly migrated channels.

Domain: Teams · Impact: high · Workload: Teams