FBI Director Christopher Wray warned that Chinese hackers are preparing to “wreak havoc and cause real-world harm” to the U.S. Chinese government-backed hackers, Wray said, are targeting things like water treatment plants, electrical infrastructure and oil and natural gas pipelines.

Natural gas plant failures were the main factor behind electricity shortfalls and outages during major winter storms in the U.S. since 2011 – that risk remains as the U.S. faces more extreme cold weather.

Hundreds of ships are avoiding the Red Sea and sailing an extra 4,000 miles around Africa because of the Houthi attacks, and it comes at considerable economic cost. The Houthis have said they are seeking to disrupt shipping links with Israel to force Israel to end its military campaign in Gaza. But ships connected to more than a dozen countries have been targeted, and a Houthi spokesman said that they consider “all American and British ships” to be enemy targets.

Alaska Airlines has begun returning its fleet of Boeing 737 Max 9s to service after a door blew off mid-flight earlier in January. CBS News got an inside look at the airline's inspection process for the grounded planes.

Memphis was the largest, but not the only, water system in Tennessee to experience problems from the unusually cold weather. The Tennessee Emergency Management Agency said that 28 water systems had issued boil water notices.

A Bridgeport man was ordered held in lieu of $150,000 bond after Monroe police said he called a bomb threat into the Aquarion Water Company claiming to be his mother, who recently lost her employment with the company.

Two people suspected of causing catastrophic damage to the tower of Payne Media Group’s KITX(FM) in Hugo, Oklahoma, have been arrested. The top half of the 499-foot tower fell on the evening of January 15, after the thieves cut several guy wires, causing an estimated $500,000 in damage, according to the station.

"Our nation's critical infrastructure sectors, such as energy, chemical and communications, are increasingly relying on UAS for various missions that ultimately reduce operating costs and improve staff safety. However, the use of Chinese-manufactured UAS risks exposing sensitive information that jeopardizes U.S. national security, economic security, and public health and safety," said CISA Executive Assistant Director for Infrastructure Security, Dr. David Mussington.

The Financial Industry Regulatory Authority (FINRA), the securities industry self-regulator, has labeled AI an “emerging risk” and the World Economic Forum in Davos, Switzerland, released a survey that concluded AI-fueled misinformation poses the biggest near-term threat to the global economy.

The Securities and Exchange Commission has confirmed that a SIM swap led a hacker to take over the @SECGov Twitter account earlier this month. By hijacking the account, the hacker was able to exploit the @SECGov profile to prematurely tweet that the financial regulator had cleared Bitcoin ETFs for national securities exchanges. The phony tweet briefly roiled markets, sending the value of Bitcoin soaring before it plummeted.

Facing severe criticism after a door plug blew out on a 737 Max over Oregon this month, Boeing said that it is withdrawing a request for a safety exemption needed to certify a new model of the plane. The company asked federal regulators late last year to allow it to begin delivering its 737 Max 7 airliner to customers even though it does not meet a safety standard designed to prevent part of the engine housing from overheating and breaking off during flight.

DHS officers raided the premises of Harco Manufacturing Group in Moraine, Ohio, amid an investigation into Chinese manufacturers of auto parts that may be evading import tariffs. Harco was founded in the U.S. in 1976 and made auto components for the OEM market but was bought out by China’s Sunsong Holdings in June 2015.