Semiconductor giant Nvidia reasserted the security of its AI processors in a blog post on Tuesday, pointing out that inserting weaknesses into chips would “undermine global digital infrastructure and fracture trust in US technology”. “There are no back doors in Nvidia chips. No kill switches. No spyware,” the post said. “That’s not how trustworthy systems are built – and never will be.” According to the post written by Nvidia chief security officer David Reber Jnr, graphics processing units...