It’s not yet clear how long or deep the crackdown will be. Some commentators have said that it could be a short-lived part of U.S. trade war posturing. But the administration has been vocal about its concerns over possible threats to national security, and Huawei has said that it was prepared for being frozen out.

How the moves could hurt Huawei. Existing products would continue to receive Google updates, but future devices would have to use the open-source version of the operating system, without services like YouTube and Google Maps. The chip freeze-out means it might be forced to use its stockpile of U.S. components.

“We can now expect China to redouble efforts to roll out a homegrown smartphone operating system, design its own chips, develop its own semiconductor technology (including design tools and manufacturing equipment), and implement its own technology standards,” Tim Culpan of Bloomberg Opinion writes. “This can only accelerate the process of creating a digital iron curtain that separates the world into two distinct, mutually exclusive technological spheres.”

More: U.S. intelligence chiefs have warned American tech companies of the dangers of doing business in China. Senator Mark Warner, a Democrat on the Senate Intelligence Committee, is doing something similar.

Deutsche Bank staff flagged activity in Trump and Kushner accounts

Anti-money laundering specialists at the German lender recommended in 2016 and 2017 that transactions involving Donald Trump and his son-in-law, Jared Kushner, be reported to a federal financial crimes watchdog, David Enrich of the NYT reports.