U.S. officials are looking at the national security implications of the Chinese artificial intelligence app DeepSeek, White House press secretary Karoline Leavitt said on Tuesday, while President Donald Trump's crypto czar said it was possible that intellectual property theft could have been at play.

White House national security adviser Mike Waltz has ordered a “full review” of personnel at the National Security Council (NSC), starting a process to weed out detailees at the agency who are not aligned with President Trump’s agenda.

As Chinese AI application DeepSeek attracts hordes of American users, Trump administration officials, lawmakers and cybersecurity experts are expressing concern that the technology could pose a threat to U.S. national security.