The executive order gives the federal government powers to restrict US companies from doing business transactions with certain foreign tech suppliers "posing an unacceptable risk to the national security", said White House Press Secretary Sarah Sanders in a statement.
"The President has made it clear that this Administration will do what it takes to keep America safe and prosperous, and to protect America from foreign adversaries who are actively and increasingly creating and exploiting vulnerabilities in information and communications technology infrastructure and services in the United States," said the White House statement.
"This Executive Order declares a national emergency with respect to the threats against information and communications technology and services in the United States and delegates authority to the Secretary of Commerce to prohibit transactions posing an unacceptable risk to the national security,' it added.
The world's third largest smartphone maker, on the contrary, has repeatedly rubbished the allegations.
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