Don't buy Chinese unless you want to be spied upon said the USA.
The USA has long advocated we blacklist China from communications projects because China might do what the USA and UK did.
We had House Intelligence Committee Chairman Rep. Mike Rogers traveling the world urging companies not to do business with the Chinese telecommunications giant Huawei as a matter of national security.
From news section of The Canadian Broadcasting Corporation:
"Allowing Huawei near any part of that network, says the chairman of the U.S. Intelligence Committee, could be courting disaster.
"This is your personal data. This could be your medical records, your financial records, everything that you hold dear that you think is locked away in a safe place on your computer…" The key word there is new secure network; I would not have the faith and confidence." Rogers says the information about Huawei gathered by his committee "puts at risk consumer data, and puts at risk security interests certainly of the United States, and I would argue of Canada as well."
Another quote from another American, Michelle K. Van Cleave:
"The former head of U.S. counter-espionage says the Harper government is putting North American security at risk by allowing a giant Chinese technology company to participate in major Canadian telecommunications projects.
"In an exclusive interview in Washington, Michelle K. Van Cleave told CBC News the involvement of Huawei Technologies in Canadian telecom networks risks turning the information highway into a freeway for Chinese espionage against both the U.S. and Canada."
So the USA should understand when we blacklist them.
And imagine the outcry in the USA if we did this to them.
They would be screaming, recalling diplomats, canceling trade deals, and increasing the rate with which the violate trade agreements they signed with us.
Only the USA has the budget, morality and easily subverted head offices that allow it to subvert so many suppliers.
The EU has no choice. The EU must simply blacklist US-based companies from bidding on communications contracts. We need EU-based suppliers at any cost.
Otherwise the EU and national governments might as well give up on security and go with the low bidding Chinese suppliers.