TikTok is a video-sharing social media platform
Anatolii Babii / Alamy
A US law banning the popular video-sharing app TikTok is set to take effect at the start of 2025 – but the US Supreme Court has agreed to hear TikTok’s legal challenge to this. Meanwhile, President-elect Donald Trump has hinted he might take action against the law, raising new questions about whether it will stand.
What would the TikTok ban actually do?
Starting on 19 January 2025, the “Protecting Americans from Foreign Adversary Controlled Applications Act” would block US companies such as Google and Apple from allowing users to access or update TikTok through their app stores – unless TikTok’s Chinese owner ByteDance sells the app to a US company. It would also require internet service providers to block the platform on US internet browsers. It was approved with bipartisan support by the House of Representatives and Senate before being signed into law by President Joe Biden in April 2024.
If the ban is implemented, it would be practically impossible for new users in the US to download the TikTok app, says Kate Ruane at the Center for Democracy & Technology, a non-profit organisation based in Washington DC. For the 170 million existing TikTok users in the US, the app might remain on their phones. Without access to updates, however, its functionality would degrade over time.
People in the US could still potentially access TikTok using a virtual private network (VPN) service that disguises a user’s location. But the experience of using the app could still worsen, says Ruane: because TikTok content would no longer be housed on nearby US servers, it would load more slowly.
These restrictions stem from concerns about privacy and security. US lawmakers have stated that TikTok is a “national security threat” because China’s government could force ByteDance to hand over TikTok users’ data or pressure the app to modify its algorithm, presenting content that could manipulate public opinion. However, no firm evidence has been provided to support these claims. TikTok has said it has invested heavily to keep US data safe from outside influence and manipulation.
“It’s very concerning that a country like the United States, which has consistently led on the global stage in defending the free, open and interoperable internet, is now taking a step to ban access to an entire platform within its borders – that is an extraordinary measure,” says Ruane.
Will the Supreme Court block the TikTok ban?
Although judges in the lower DC Circuit Court of Appeals previously allowed the US law to stand, the Supreme Court has agreed to hear TikTok’s appeal. TikTok’s position is that the ban amounts to censorship that violates the free speech rights afforded to Americans under the US Constitution’s First Amendment.
“I would like to see the court really grapple with how this law harms those rights, and how the government should account for the rights of social media users when it is attempting to regulate these speech platforms,” says Ruane. “The courts have not done that in the course of examining this particular law, even though there are users who are suing, claiming that the law violates their First Amendment rights, as distinct from TikTok.”
The most likely short-term impact is that the US Supreme Court will temporarily suspend implementation of the law while the justices are considering the case, says Ruane. That could delay the law’s effects for months –however long the Supreme Court requires to make its decision in 2025. TikTok has specifically asked for such a hiatus in its court filing.
If the Supreme Court finds that the ban infringes First Amendment rights, and that the US government has less restrictive options at its disposal, it could issue an injunction that effectively makes it impossible for the government to justify such an outright ban, says Ruane. The Supreme Court may also require the lower DC Circuit Court of Appeals to reexamine its analysis of the case. Such decisions could force the government to find more narrowly tailored options for regulating TikTok.
How could Trump prevent the TikTok ban?
In his first term, President-elect Trump supported plans to ban TikTok, but he has since changed his stance. During the 2024 presidential campaign, he promised to “save TikTok” in a post on his social media platform, Truth Social, as he encouraged US voters to back him. On 16 December, Trump met the CEO of TikTok and later, during a press conference, said his administration would “take a look” at the ban. Even if the Supreme Court eventually agrees to let the ban stand, Trump could change the impact of the law.
For example, the president could go back to US lawmakers and ask them to change the national law by repealing or amending it, says Ruane. She also described a scenario where Trump could potentially direct his administration’s US attorney general to not enforce the law – although she cautioned that would be outside the norms of how the US government has typically operated.
Even if Trump’s attorney general announced that the US government wouldn’t enforce the ban, US companies such as Google and Apple might still be reluctant to allow people to access the app through their platforms. “If I am in charge of legal risk at one of these companies, I don’t know whether I would say ‘we’re going to trust that [decision], it’s fine for us to allow access to this app that has been banned,’” says Ruane.
What would a US TikTok ban mean for the rest of the world?
If it goes through, the US ban could have significant ripple effects across the world. For starters, people in other countries would no longer have access to new content from US-based TikTok creators and influencers. But more crucially, the US government’s actions could encourage other countries eying similar restrictions.
The US isn’t the first nation to act against TikTok – India’s government has blocked the app since 2020 – but Ruane expressed concerns that a US ban could encourage “authoritarian regimes” to bar any app, including some developed in the US, by invoking similar national security justifications.
“I think it absolutely will be used as a justification for banning TikTok elsewhere, but also for banning access to other applications which have served as important speech platforms in countries where the internet might not otherwise be as open,” says Ruane.
Would the TikTok ban protect privacy?
The ostensible goal of the ban is to protect the privacy of US TikTok users – preventing their data from falling into the hands of another nation – and to address concerns that China’s government could manipulate content presented to app users in the US. But Ruane says there are many alternative actions US lawmakers could take before blocking TikTok entirely.
For instance, the government could require TikTok to be more transparent about how it gathers and shares individual users’ data, and what measures it takes to protect their privacy. To alleviate concerns of manipulation, lawmakers might require the platform to share how its algorithms filter and manage the content that users see, says Ruane.
The US government could also consider passing a consumer privacy law to provide better legal protections for how social media platforms can share individuals’ data with other companies or governments. “Those options regarding consumer privacy and transparency are less extreme than banning an entire platform,” says Ruane.
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