Chinese Tech Threatens Future Global Security, U.K. Spy Chief Warns

LONDON—Beijing’s efforts to exert control over technology both internationally and within China’s borders threaten future global security and freedom, the chief of the U.K.’s electronic intelligence agency said.

Jeremy Fleming, the director of Britain’s Government Communications Headquarters, said Beijing was aiming to use an array of existing and emerging technological means, including digital currency and satellites, to control markets and people, extend surveillance and censorship and export its authoritarian system around the world.