By Levi Sumagaysay

The (San Jose, Calif.) Mercury News

Apple is strongly denying to Congress an explosive report that its products have been compromised by the Chinese government.

Apple’s top security officer told lawmakers the company has found no evidence of claims made in a report published last week. His response comes after the Department of Homeland Security and Britain’s national cybersecurity agency both said that they believe denials by Apple, Amazon and others of the Bloomberg report that the Chinese government planted surveillance microchips in servers used by U.S. tech giants.

The chips were reportedly inserted into motherboards for servers made by a San Jose-based company, Supermicro, which also denies Bloomberg’s story.

“We are eager to share the facts in this matter because, were this story true, it would rightly raise grave concerns,” George Stathakopoulos, vice president of information security at Apple, wrote to the leaders of the House and Senate commerce committees on Monday. “A compromise of this magnitude, and the effective deployment of malicious chips like the one described by Bloomberg, would represent a serious threat to the security of systems at Apple and elsewhere.”

This echoes the company’s denial to the press last week, and is in line with Amazon’s response, too.

“At no time, past or present, have we ever found any issues relating to modified hardware or malicious chips in SuperMicro motherboards in any Elemental or Amazon systems,” Amazon said last week. “Nor have we engaged in an investigation with the government.”

The Bloomberg report, published Thursday, also claims that there is an ongoing FBI investigation into the issue. Supermicro said last week it is not aware of any such investigation, either, and had not been contacted by the government.