Lip-Bu Tan, the man chosen to lead Intel, the U.S.'s largest chip maker, has invested in hundreds of Chinese tech firms, including at least eight with links to the People's Liberation Army, according to a Reuters review of Chinese and U.S. corporate filings.

The US Cybersecurity and Infrastructure Security Agency (CISA) is warning that Contec CMS8000 devices, a widely used healthcare patient monitoring device, include a backdoor that quietly sends patient...