Oppo is the sixth-largest smartphone maker in China, according to Counterpoint Research.BARCELONA — Chinese smartphone firm Oppo is taking a page out of Apple's playbook with the launch of a private cloud computing system to keep users' sensitive conversations separate from its own artificial intelligence products.The company on Monday announced a deal with Google that will see it use the U.S. tech firm's Confidential Computing software, which uses encryption to ensure user data can't be viewed by third par ...