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US lifts TikTok federal-device ban, highlighting platform’s enduring US appeal: expert_我的网站

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一 |

TikTok File Photo: VCG
The Trump administration has formally lifted restrictions on the use of TikTok on US federal government devices following the restructuring of the platform's US operations, marking another step toward normalizing TikTok’s operations in the US. Analysts said TikTok's continued operation in the country after years of political and regulatory pressure reflects its deep reach among American users and businesses, as well as the competitiveness of Chinese-developed digital products.
The White House Office of Management and Budget said in a memorandum dated Monday and released Tuesday that TikTok is no longer covered by a federal ban on its use on government devices, effectively lifting a restriction imposed over "national security" concerns tied to the platform's previous ownership by ByteDance.
The decision was based on a legal opinion issued by the US Justice Department in July, which concluded that the version of TikTok now operated by the restructured US joint venture, or TikTok USDS Joint Venture, no longer falls under the 2022 federal government-device ban. The opinion also made clear that individual agencies still retain discretion over whether to allow employees to use the app on official devices.
TikTok's ability to remain in the US market after years of political and regulatory pressure demonstrates its strong user appeal and commercial importance, Li Yong, an executive council member of the China Society for WTO Studies, told the Global Times on Wednesday. The platform has become deeply embedded in the US digital economy, with American creators and businesses relying on it to reach audiences, generate income and promote their products, he said.
Its continued operation also reflects the broader global competitiveness of Chinese-developed digital products, Li noted. "Despite years of pressure, TikTok has preserved its core functions, business model and value as a global platform, showing that the appeal of a competitive product cannot simply be erased through political or regulatory restrictions," he said.
Any politically driven move targeting companies of a particular country risks eroding foreign companies' confidence in the US market, and ultimately weakening the country's appeal as a stable and predictable destination for global business, the expert said.
TikTok is used by about 170 million Americans, according to the White House, which noted that content creators rely on the platform for their livelihoods and businesses use it to advertise and connect with customers.
Agencies including the Treasury, Transportation and Health and Human Services departments launched TikTok accounts following the Justice Department's July opinion, while the White House had already created an account last year, according to Politico.
In 2022, the US Congress passed the No TikTok on Government Devices Act, barring TikTok from federal government devices, with several states later following suit. The pressure escalated in 2024, when Congress required ByteDance to divest control of the platform or face a US ban. TikTok briefly went dark in January 2025 before President Donald Trump delayed enforcement while a divestiture deal was negotiated.
The restructuring was completed in January 2026 with the establishment of TikTok USDS Joint Venture. According to the company's official announcement, ByteDance retains a 19.9-percent stake, while the rest is held by investors including Oracle, Silver Lake and MGX.
Under the new structure, the joint venture oversees US user data, algorithm security, content moderation and software assurance. Meanwhile, TikTok has retained global product interoperability, with TikTok global's US entities continuing to manage certain commercial activities, including e-commerce, advertising and marketing, according to the company.
During the China-US economic and trade talks in Madrid, Spain in September 2025, the two sides reached a basic framework consensus on properly resolving the TikTok issue through cooperation, reducing investment barriers and promoting relevant economic and trade cooperation, according to China's Ministry of Commerce (MOFCOM).
A MOFCOM statement said that the Chinese government fully respects companies' wishes and supports them in conducting equal-footed commercial negotiations based on market principles. China will also review matters involving TikTok's technology exports and intellectual property licensing in accordance with the law.
China urged the US to provide a fair, open, transparent, and non-discriminatory business environment for the continuous and stable operation of Chinese enterprises in the US, so as to promote the stable, healthy, and sustainable development of China-US economic and trade relations, a MOFCOM spokesperson said in December, commenting on the reported agreements to establish TikTok's US joint venture.
。 8 月 26 日消息，据新华社今日报道，首都师范大学生命科学学院昆虫演化与环境变迁教育部创新团队联合国内外多个科研团队，通过对内蒙古宁城县道虎沟地区侏罗纪时期化石螽斯的研究，首次证实昆虫超声波通讯在距今 1.65 亿年前的中侏罗世已经出现。

二 | 相关研究成果于 2026 年 8 月 26 日在线发表于《美国科学院院刊》（PNAS）。研究团队选取了燕辽生物群中 9 种、20 件雄性螽斯前翅标本，与现仅分布在四川的螽斯孑遗类群长生铁鸣螽进行对照研究。团队搭建了“化石翅形态 — 翅共振模拟 — 音节重构 — 鸣声时序预测”的古动物声学重建流程，用以复原远古昆虫完整鸣声的声学特征。论文共同通讯作者、首都师范大学教授任东介绍，9 种化石螽斯的鸣声频率覆盖 5kHz 至 20.5kHz 区间，其中 5 个物种为 5kHz 至 7kHz 的低频纯音，其余 4 个物种分布于 8kHz 至 20.5kHz 的中高频区间。化石物种奇异曲阿博鸣螽的载波频率可达 20.5kHz，证实中侏罗世已存在真正意义上的超声通讯类昆虫。此前学界长期认为，超声通讯类昆虫是为应对蝙蝠捕食而演化形成的。该项研究明确了超声通讯类昆虫的演化起源发生在蝙蝠出现之前，比始新世蝙蝠早出现超过 1 亿年。研究还发现，9 种化石螽斯的鸣叫声频谱范围异常狭窄，即“纯音”（注：指频率成分单一的声波）。这种纯音鸣唱会降低捕食者对声源的定位能力 —— 侏罗纪早期哺乳动物虽具备一定高频听觉，但其中耳结构对纯音的方位分辨能力较弱。因此，侏罗纪螽斯演化出纯音鸣唱，被认为是对抗捕食者窃听的关键演化适应。任东团队与英国布里斯托大学曾于 2012 年首次复原了道虎沟地区中侏罗世螽斯物种“悦耳古鸣螽”的鸣叫声。此次新成果不仅首次证实昆虫超声波通讯已在侏罗纪时期出现，还完整重建了史前森林螽斯群落的声景。任东表示，该研究“穿越 1.65 亿年听见侏罗纪时期的虫鸣”，建立起中生代昆虫-哺乳类双向声学选择的新理论，完善了陆地动物听觉与发声协同演化体系。

三 | 附论文地址：
https://doi.org/10.1073/pnas.2615107123。

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