Slack, whose chat app aims to help workers get stuff done, might now have them running scared, knowing the boss could access their chats.

The company’s upcoming paid Plus plan will include an optional feature called Compliance Exports, announced Monday, which will let administrators access their team’s communications, encompassing public and private messages.

The tool is far-reaching, potentially including the edit history for workers’ messages as well as messages workers have marked for deletion, if the supervisor so desires.

Workers today might expect that emails stored on their company’s computers could be looked at later. But Slack, by virtue of it being a chat service, will undoubtedly raise privacy concerns here, especially among people who use its private messaging functions.

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