Apple chief executive Tim Cook has demanded the retraction of a story alleging Chinese infiltration in its and other major firms’ infrastructure.
Bloomberg’s Businessweek published a story which said malicious chips were built into servers that had been manufactured in China.
But in an unprecedented step, Mr Cook told Buzzfeed: “They need to do that right thing and retract it.”
Meanwhile, Businessweek has said it stands by its reporting.
“Bloomberg Businessweek’s investigation is the result of more than a year of reporting, during which we conducted more than 100 interviews,” the publication said in a statement.
“Seventeen individual sources, including government officials and insiders at the companies, confirmed the manipulation of hardware and other elements of the attacks.
“We also published three companies’ full statements, as well as a statement from China’s Ministry of Foreign Affairs.
“We stand by our story and are confident in our reporting and sources.”