Why TikTok’s security risks keep raising fears

The battle between the U.S. and China over TikTok comes into full view on Thursday when the social media platform’s CEO testifies before Congressional lawmakers.

Shou Zi Chew’s hearing is happening at what he’s called a “pivotal moment” for the hugely popular short video sharing app. TikTok is owned by parent company ByteDance, which has offices in Beijing. The platform has 150 million American users but it’s been dogged by persistent claims that it threatens national security and user privacy, or could be used to promote pro- Beijing propaganda and misinformation.

Chew will attempt to persuade lawmakers not to pursue a ban on the app or force its sale to new owners.

So are the data security risks real? And should users be worried that the TikTok app will be wiped off their phones?

Here’s what to know:

WHAT ARE THE CONCERNS ABOUT TIKTOK?

Both the FBI and officials at the Federal Communications Commission have warned that ByteDance could share TikTok user data — such as browsing history, location and biometric identifiers — with China’s authoritarian government.

Officials fear that TikTok, which like many other social media platforms collects vast amounts of data on its users, would be forced to give it to Beijing under a 2017 law that compels companies to turn over any personal data relevant to China’s national security.

Concerns around TikTok were heightened in December when ByteDance said it fired four employees who accessed data on journalists from Buzzfeed News and The Financial Times while attempting to track down the source of a leaked report about the company.

HOW IS THE U.S. RESPONDING?

The Committee on Foreign Investment in the U.S. — known as CFIUS and part of the Treasury

Department — is carrying out a review, and has reportedly threatened a U.S. ban on the app unless its Chinese owners divest their stake. China’s Foreign Ministry in turn accused the United States itself of spreading disinformation about TikTok’s potential security risks.

White House officials have said there are “legitimate national security concerns with respect to data integrity.”

Some U. S. senators urged CFIUS last year to quickly wrap up its investigation and “impose strict structural restrictions” between TikTok’s American operations and ByteDance, including potentially separating the companies.

At the same time, lawmakers have introduced measures that would expand the Biden administration’s authority to enact a national ban on TikTok. The White House has already backed a Senate proposal that has bipartisan support.

HOW HAS TIKTOK ALREADY BEEN RESTRICTED?

Authorities in North

America, Europe and Asia-Pacific have banned the TikTok app, mostly on government-issued phones or devices used for official business, citing cybersecurity concerns. Last week Britain imposed a government phone ban while New Zealand restricted lawmakers and other workers in its Parliament from having it on their phones.

The European Union’s three main institutions, the executive Commission, Parliament and Council, have ordered staffers to remove it from their work phones. So has Denmark’s defense ministry. The Canadian government said its ban includes blocking civil servants from downloading the app in the future. Norway and Netherlands warned this week against installing TikTok on government devices.

The White House ordered U.S. federal agencies to delete TikTok from all government-issued mobile devices. Congress, the U.S. armed forces and more than half of U.S. states had already banned the app.