The heads of the FBI and MI5 intelligence agencies have delivered an unprecedented joint address raising alarms about the “game-changing” threat posed by Chinese espionage.  

The FBI's Christopher Wray and MI5's Ken McCallum shared a stage for the first time at the MI5 headquarters in London to warn an audience of industry CEOs and senior figures from universities about the dangers posed by China's reported desire to obtain Western technology to acquire a competitive gain. 

“The Chinese government is set on stealing your technology - whatever it is that makes your industry tick - and using it to undercut your business and dominate your market,” Wray said in the speech.

“Maintaining a technological edge may do more to increase a company’s value than would partnering with a Chinese company to sell into that huge Chinese market, only to find the Chinese government and your partner stealing and copying your innovation.” 

In his speech, Wray reaffirmed...