The largest PC supplier in the world, Chinese made Lenovo PCs, were allegedly banned around the year 2005 and continue to be from MI5, MI6, and the UK’s Government Communications Headquarters (GCHQ) classified networks after backdoors were found in the firmware and hardware chips.  That year was also when Lenovoa bought IBM’s PC business.

Chinese made Huawei’s networking equipment was also accused last week in the Australian Financial Review newspaper by General Michael Hayden, former Director of the National Security Agency (NSA) and former Director of the Central Intelligence Agency (CIA), of being an

unambiguous national security threat

and also stated,

God did not make enough briefing slides on Huawei to convince me that having them involved in our critical communications infrastructure was going to be okay. This is not blind prejudice on my part. This was my considered view based on a four-decade career as an intelligence officer.