Washington (AP): The CEO of TikTok will make a high-profile appearance Thursday before a US Congressional committee, where he'll face a grilling on data security and user safety while he makes his own case for why the hugely popular video-sharing app shouldn't be banned.

Shou Zi Chew's testimony comes at a crucial time for the company, which has acquired 150 million American users but is under increasing pressure from US officials.

TikTok and its parent company ByteDance have been swept up in a wider geopolitical battle between Beijing and Washington over trade and technology.

Chew, a 40-year-old Singapore native, is making a rare public appearance to counter the volley of accusations that TikTok has been facing.

On Wednesday, the company sent dozens of popular TikTokers to Capitol Hill to lobby lawmakers to preserve the platform. It has also been putting up ads all over Washington that tout promises of securing users data and privacy and creating a safe platform for its young users.

Chew plans to tell the US House Committee on Energy and Commerce that TikTok prioritises the safety of its young users and deny allegations that the app is a national security risk, according to his prepared remarks released ahead of the hearing.

TikTok has been dogged by claims that its Chinese ownership means user data could end up in the hands of the Chinese government or that it could be used to promote narratives favourable to the country's Communist leaders.

"We understand the popularity of Tiktok, we get that," said White House press secretary Karine Jean-Pierre at a press conference Wednesday afternoon. "But the President's job is to make sure again that the Americans, national security is protected as well. "

For its part, TikTok has been trying to distance itself from its Chinese origins, saying that 60 per cent of its parent company ByteDance is owned by global institutional investors such as Carlyle Group. ByteDance was founded by Chinese entrepreneurs in Beijing in 2012.

"Let me state this unequivocally: ByteDance is not an agent of China or any other country," Chew said.

A US ban on an app would be unprecedented and it's unclear how the government would go about enforcing it.

Experts says officials could try to force Apple and Google to remove TikTok from their app stores, preventing new users from downloading it as well as preventing existing users from updating it, ultimately rendering it useless.

The US could also block access to TikTok's infrastructure and data, seize its domain names or force internet service providers like Comcast and Verizon to filter TikTok data traffic, said Ahmed Ghappour, a criminal law and computer security expert who teachers at Boston University School of Law.

But a tech savvy user could still get around restrictions by using a virtual private network to make it appear the user is in another country where it's not blocked, he said.

To avoid a ban, TikTok has been trying to sell officials on a USD 1.5 billion plan called Project Texas, which routes all US user data to domestic servers owned and maintained by software giant Oracle.

Under the project, access to US data is managed by US employees through a separate entity called TikTok US Data Security, which employs 1,500 people, is run independently of ByteDance and would be monitored by outside observers.

As of October, all new US user data was being stored inside the country. The company started deleting all historic US user data from non-Oracle servers this month, in a process expected to be completed later this year, Chew said.

A number of Western countries including Denmark, Canada, and New Zealand, along with the European Union, have already banned TikTok from devices issued to government employees, citing cybersecurity concerns.

In the US, the federal government, Congress, the armed forces and more than half of states have banned the app from official devices.

David Kennedy, a former government intelligence officer who runs the cybersecurity company TrustedSec, agrees with restricting TikTok access on government-issued phones because they might contain sensitive military information or other confidential material. A nationwide ban, however, might be too extreme, he said. He also wondered where it might lead.

"We have Tesla in China, we have Microsoft in China, we have Apple in China. Are they going to start banning us now?" Kennedy said. "It could escalate very quickly."

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Visakhapatnam (PTI): India fought back gallantly through Prasidh Krishna and Kuldeep Yadav after Quinton de Kock struck his 23rd hundred, keeping South Africa to a manageable 270 in the third and series-deciding final ODI, here Saturday.

India won the toss after judging the spin of the coin incorrectly 20 times in a row. They had little hesitation in inserting the Proteas into bat, a clear indication of dew factor dominating the thought.

After Arshdeep Singh sent back Ryan Rickelton early, De Kock (106, 89b, 8x4, 6x4) struck his seventh century against India and put on 113 runs off 124 balls with skipper Temba Bavuma (48, 67b) as the visitors moved to a healthy position.

De Kock was severe on Prasidh (4/66), who erred on length continuously in his first spell (2-0-27-0). The left-hander biffed the pacer for 6, 6, 4 in his second over to milk 18 runs.

The 32-year-old quickly pounced on anything that was short, and pacers Prasidh and Harshit offered him plenty of feed on his pet areas.

Bavuma was more sedate, and made runs through those typical dabs and jabs, occasionally unfurling a drive of elan.

De Kock moved to fifty in 42 balls, and never let the tempo down reaching his hundred in 79 balls.

India found temporary relief when Ravindra Jadeja induced a false slash from Bavuma to get caught by Virat Kohli at point.

The tourists got another move on through a 54-run partnership between De Kock and Matthew Breetzkle for the third wicket, and at 168 for two in 28 overs they were in a good position to press on.

But Breetzke's punishment of part-time spinner Tilak Varma forced a rethink in the Indian camp, as skipper KL Rahul brought back Prasidh for a second spell.

What a masterstroke it turned out to be! The Karnataka man broke the back of South Africa’s top and middle order in an exceptional second spell (4-0-11-3).

Breetzke was the first man to go, trapped plumb in front with a straight one and four balls later Aiden Markram uppishly chipped a fuller delivery to Kohli at short covers.

Prasidh soon castled De Kock, whose ugly cross-batted swipe failed to connect a full length delivery from the pacer.

All of a sudden, SA found themselves at a shaky 199 for five, losing three wickets in the space of three overs.

Once Prasidh was done away with the top and middle-order, left-arm wrist spinner Kuldeep (4/41) took over and mopped up the tail as SA fell short of even a par total on this track.