Disney is reportedly phasing out Slack after a major data breach, with plans to switch to Microsoft Teams for internal communication and collaboration.
The move follows an incident in July in which hackers gained access to Disney’s internal Slack archives and leaked 1.1 TB of sensitive information, exposing confidential company messages, project data and employee information.
According to an internal memo seen by Company Insiderthe California-based media and entertainment company plans to transition to Teams by the end of the second quarter of 2025.
Disney no longer trusts Slack after data breach
Slack’s move to Teams is seen as a way to address cybersecurity concerns following the July incident.
NullBulge, the hacktivist group responsible for the incident, is said to have compromised 10,000 Slack channels, including internal communications and sensitive information such as images, source code and login credentials. The information dates back to 2019.
However, many employees are reportedly concerned that the move is also intended to reduce ongoing costs. Many fear that the transition could be fraught with complexities, including the need for retraining and broken integrations.
Disney and other major companies have been criticized for using centralized platforms that don’t offer end-to-end encryption.
Despite employee complaints, Disney appears to be moving forward with its plan to migrate to Teams, which is end-to-end encrypted.
The Disney incident wasn’t the only high-profile cyberattack on Slack to take place recently. Uber, EA Games, Grand Theft Auto, X and Slack were also victims of similar attacks, raising questions about the security measures in place on Salesforce’s platform.
Ny Breaking has reached out to Disney, Slack and Microsoft for comment on the reports, but none of the companies immediately responded.