Disney to abandon Slack after July data breach.

• The Walt Disney Company will no longer use Slack for in-house company communication.
• In July, a hack occurred on the company's Slack server, resulting in over a terabyte of confidential data being exposed to the public.
• According to a memo from Disney CFO Hugh Johnston, obtained by CNBC, most of Disney's business units will stop using Slack by the end of the next fiscal quarter.

The company will stop using Slack for internal communication after a data breach that exposed more than a terabyte of sensitive information to the public.

Disney has announced that most of its business units will stop using Slack by the end of its next fiscal quarter, despite already beginning to transition to a new internal collaboration tool. This was revealed in a memo from Disney CFO Hugh Johnston, which was obtained by CNBC.

In August, Disney informed investors that the summer data breach, which contained sensitive financial information, computer codes, and details about upcoming projects, was not anticipated to significantly affect the company's operations or financial results.

Neither Disney nor Slack's owner responded promptly to CNBC's inquiry for comment.

During an interview with Bloomberg at the Salesforce annual Dreamforce conference, Marc Benioff, CEO of Salesforce, stated that the company's security is unbreakable.

"To prevent phishing attacks and secure their employees' social engineering, companies must take the necessary measures. However, it is also important for customers to take responsibility and do their part."

Disney utilizes Salesforce products in various aspects of its business, including its Disney store, Disney guides, sales and service operations, and call centers, as observed by Benioff.