Uber Technologies Inc. has passed new rules forbidding board members from contacting employees at the ride-hailing firm for assistance or information, a change that was sparked by the company’s former CEO trying to drum up support for a possible shareholder battle, The Information reports.

“Divisions on Uber’s board are being inflamed by behind-the-scenes efforts of the company’s recently ousted CEO Travis Kalanick to gauge whether former colleagues would support him in a potential shareholder…