Government Agencies NSA

CNBC's Eamon Javers reports that the REvil sites are down including payment and data leak sites.

Tensions between China and the United States are on the rise as the two countries cancel visas, close each other's consulates and accuse each other of mishandling the Covid-19 pandemic. Now, the U.S. government has identified a new, unexpected threat from the Chinese: Fertility clinics. CNBC's Eamon Javers joins "Squawk Box" with the results of a CNBC investigation that impacts some of the most intimate decisions a family can make.

The U.S. is "looking at" banning TikTok and other Chinese social media apps, Secretary of State Mike Pompeo said Monday. TikTok will also exit the Hong Kong market within days, a spokesman told Reuters, as other technology companies including Facebook have suspended processing government requests for user data in the region. India has also banned TikTok.

A big vote is expected at the Federal Communications Commission on Tuesday that would block Huawei and ZTE from receiving federal money to help build broadband infrastructure. The two companies could be named as national security threats, which would block them from receiving anything from the $8.5 billion universal service fund the government offers to cell companies. Ash Carter, former U.S. Defense Secretary, joins CNBC's "Squawk Box" to discuss the vote, national security and China.

Andy Purdy, chief security officer of Huawei Technologies USA, joins CNBC's "Squawk Box" to discuss some of the big headlines of the day including the U.S. blacklisting of the company, U.S.-China trade, Hong Kong protests, and more.

President Donald Trump named Robert O'Brien as his national security advisor on Wednesday, eight days after the abrupt departure of John Bolton. O'Brien, a State Department official, will become Trump's fourth national security advisor, following the departures of Bolton and three-star Army generals Michael Flynn and H.R. McMaster.

CNBC's "The Exchange" talks about the uptick in scam and phishing emails with Judith Pinto, managing director of the cybersecurity practice at IBM's Promontory Financial Group, and Kate Fazzini, CNBC.com tech reporter and former cybersecurity vice president at J.P. Morgan. There's an ongoing scam targeting paychecks that impersonate corporate executives.

Gen. Michael Hayden, retired U.S. Air Force and former CIA and NSA director, discusses his news book "The Assault on Intelligence" about the state of U.S. intelligence community.

Here is a roundup of Pompeo's views on various national security matters.