UBS Group AG said that information about the company had been stolen in a cyber attack on one of its suppliers, following a report a Swiss newspaper that data on more than 130,000 employees had been subject to a hack. “A cyber-attack at an external supplier has led to information about UBS and several other companies being stolen,” the Zurich-based bank said in a statement on Wednesday. “No client data has been affected. As soon as UBS became aware of the incident, it took swift and decisive act...