WASHINGTON — President Trump on Tuesday signed an govt order prohibiting transactions with eight Chinese language software program purposes, together with Alipay, the fee platform owned by Ant Group, and WeChat Pay, which is owned by Tencent.

The transfer, two weeks earlier than the tip of Mr. Trump’s time period, might assist lock in his administration’s harsher stance towards China and is more likely to additional rankle Beijing. However defining the scope of the order and implementing it could presumably fall to the incoming Biden administration, which has not clarified whether or not it’ll attempt to enact Mr. Trump’s bans, creating uncertainty concerning the efficacy of the transfer.

The chief order, issued late Tuesday, will bar any transactions with “individuals that develop or management” the apps of Alipay, CamScanner, QQ Pockets, SHAREit, Tencent QQ, VMate, WeChat Pay, WPS Workplace and their subsidiaries after a interval of 45 days.

Within the order, the president mentioned that China had been utilizing “bulk knowledge assortment” to advance its financial and nationwide safety agenda, and that the focused apps put Individuals in danger.

“The USA has assessed that numerous Chinese language related software program purposes mechanically seize huge swaths of knowledge from thousands and thousands of customers in america, together with delicate personally identifiable info and personal info,” the order mentioned. “Presently, motion have to be taken to deal with the risk posed by these Chinese language related software program purposes,” he wrote.

At a every day information convention on Wednesday, Hua Chunying, a spokeswoman for China’s International Ministry, known as on the Trump administration “to supply an open, honest, simply and nondiscriminatory enterprise surroundings,” including that Beijing “will after all take obligatory measures to safeguard the legit rights and pursuits of Chinese language corporations.”

The chief order is the most recent escalation by the Trump administration in opposition to China. Underneath Mr. Trump, the White Home has ramped up tariffs and waged a commerce struggle. It has additionally focused Chinese language-owned social media providers, saying they supply a conduit for Chinese language espionage and pose a nationwide safety threat to the American public. Final fall, the Trump administration issued executive orders banning two different common Chinese language-owned social media providers, TikTok and WeChat.

However each of these bans have turn out to be entangled in litigation, and the providers proceed to function in america. That raises the query of whether or not American courts will concern an injunction to cease Mr. Trump’s newest bans on Chinese language providers as effectively.

In a briefing Tuesday night, a senior official with the Trump administration mentioned that it nonetheless anticipated to prevail in these court docket instances, and that authorized challenges to the TikTok and WeChat orders had centered on First Modification rights, which might most probably not be a big concern with the fee platforms and different apps affected by the most recent order.

The senior official additionally mentioned the Trump administration had not been in touch with the Biden administration concerning the order. The Biden administration didn’t instantly reply to a request for remark.

Tencent declined to remark. The opposite Chinese language tech corporations affected by the order didn’t instantly have a remark.

The order’s attain could also be restricted, provided that the overwhelming majority of customers of the affected apps reside in China. Customers of Alipay, for instance, are usually required to own a checking account in China and a Chinese language cellphone quantity. Samm Sacks, a cybersecurity coverage and China digital economic system fellow on the New America suppose tank, mentioned it was unlikely that lots of the apps included within the govt order dealt with a lot knowledge belonging to Americans.

Nonetheless, the restrictions might fall closely on Chinese language-Individuals who journey between the nations or use the providers to remain in contact or perform enterprise with contacts in China.

The measure may additionally field in President-elect Joseph R. Biden Jr., who has indicated that he desires to recalibrate America’s insurance policies towards China whereas persevering with to stress the nation on some points.

“The chief order will take impact on Biden’s watch,” mentioned Ms. Sacks. “Even when his group doesn’t purchase the nationwide safety threat, politically the order shall be robust to unwind with out trying like a concession to Beijing. I see the order as a last-minute flailing to attempt to tie Biden’s arms.”

The brand new order duties the secretary of commerce with figuring out the kind of transactions that shall be affected in 45 days. It additionally directs the secretary to determine and take applicable motion in opposition to different apps, and make broader suggestions on how america ought to develop a program to manage the circulation of private U.S. knowledge to overseas adversaries, the senior Trump administration official mentioned. The official mentioned the order was not meant to forestall the Chinese language corporations from paying their staff in america.

In an announcement, Wilbur Ross, the commerce secretary, mentioned he had directed his division to start enacting the orders, “together with figuring out prohibited transactions associated to sure Chinese language related software program purposes.”

“I stand with President Trump’s dedication to defending the privateness and safety of Individuals from threats posed by the Chinese language Communist Social gathering,” he added.

The chief order got here because the Trump administration and members of Congress additionally pressured the New York Stock Exchange on Tuesday to take away China’s three main state-run telecommunications corporations from the alternate.

The inventory alternate late Monday had reversed its unique plans, introduced final week, to delist the businesses to adjust to an govt order from the administration aimed toward stopping American funding in corporations linked to the Chinese language army.

Alan Rappeport and David McCabe contributed reporting. Claire Fu contributed analysis.