Are Chinese tech firms a security risk?
US Congress members have grilled TikTok boss Shou Zi Chew over the the safety of the social media app.
The US has threatened to ban it completely if the company remains under Chinese ownership.
Many Western countries are also taking measures against other Chinese tech firms over security fears.
TikTok is a platform for creating and sharing short videos and is owned by the Chinese company ByteDance.
It was started in 2016, and has become the third most popular internet service in the world, with more than a billion active monthly users.
The app has been banned on government devices in Canada, Belgium, Denmark, New Zealand, Taiwan, the UK and the US.
The EU told its staff to remove the app from phones it has issued, and also recommended they remove it from private devices on which official apps are installed.
India has banned TikTok outright because of security concerns.
Afghanistan has also banned it to prevent young people from "being misled".
TikTok gathers the same type of user data as many other social media firms such as Facebook and Instagram.
This includes names, ages, phone numbers, email addresses and photos.
FBI director Chris Wray has pointed to China's 2017 National Intelligence Law, saying it requires companies "to do whatever the government wants them to do in terms of showing them information or serving as a tool for the Chinese government."
TikTok also has a tool which recommends video clips for users to watch, called the "For You" feed, which experts say is better designed than those used by Facebook or Youtube.
"TikTok has a more complex model in terms of showing content to its users," says Dr Maryam Mehrnezhad from the Department of Information Security at Royal Holloway, University of London. "This makes the spread of misinformation easier and its identification and detection more difficult."
Chinese companies specialising in 5G technology such as Huawei, ZTE and Hytera have been banned from installing equipment on networks in Australia, the US, Japan, India, and Canada.
The UK government has ordered equipment installed by Huawei to be removed from 5G networks by 2027.
The US and Dutch governments are restricting the export of semiconductors to China because of security fears over the country's development of supercomputing and AI technology.
The UK and Australian government have ordered Chinese-made security cameras to be removed from sensitive sites.
Governments fear that 5G equipment installed by Chinese firms in foreign countries' networks contains "backdoors" through which data can be passed back to Beijing.
Through companies such as Hikvision, China is the world's largest producer of security cameras. It is thought that that these could also be secretly feeding intelligence to China.
"Why wouldn't they have put in backdoor access?" asks Prof Anderson. "Western countries have done that for years when they've built telephone networks around the world."
There's no hard evidence that China is using its tech firms for espionage, says Jake Moore, global security advisor to ESET, an internet security firm.
However, he says: "There's a fear that firms like Huawei and TikTok have become so big that they could be hacking huge amounts of data and damaging national security.
"Governments are right to take precautions against it now rather than later."
China's foreign ministry has called the bans on TikTok and other tech firms "political theatre", saying the "US is overstretching national security concerns to suppress other countries' companies."
TikTok insists it gathers no more data than other social media apps, and is independent of the government.
In 2022, it admitted that some of its staff in China could access user data gathered in Europe, but it says that it is working on ways of keeping such information within Europe.
It also says that American users' data is nowadays processed through US servers, and does not go to China.
-
Executed Oklahoma death row inmate Benjamin Cole was given priconsequentlyn-issued 'religious meal' of vegetarian lasagna, salad, a tortilla and a fruit drink packet: Guards say he referred to himself as 'just a super-duper hyperbolic Jesus freak''He gave me the gift of family': Melissa Etheridge pays tribute to rocker David Crosby... whom she chose as sperm donor for two of her kids over Brad PittBiden insists mixed job report is GOOD news before midterms and claims Republicans are 'rooting for a recession': Boasts the 'recovery remains strong' as US adds 261,000 jobs in October - but employment ticks up to 3.7%Second suspect is arrested over assault on Marco Rubio canvasser 'for being Republican', after it was revealed victim is 'former' neo-NaziBREAKING NEWS: Newcastle agree to sign Anthony Gordon for £40m - plus £5m in add-ons - with a medical set for tomorrow after the Everton youth product missed days of training to compel it throughBlack cab driver tells Just Speak Oil mob to 'get a job' as activists glue themselves to the road blocking busy junction in central London before police make 16 arrests Revealed: The callous messages sent by 'vindictive' erecter to his ex's two children to cover his tracks after he bludgeoned her to death with an axe then dumped her in a shallow grave PICTURED: The six airmen who died during Veterans Day 'Wings over Dallas' demonstrate when B-17 COLLIDED midair with Bell P-63 Kingcobra, as spectators watched in horror - experienced pilots were captains for American Airlines and United Amazon staff protest climate record and office returnTop Gear host Andrew 'Freddie' Flintoff is airlifted to hospital after horror car crash while filming BBC demonstrate: Ex-England cricket ace is hurt on test track three years after cheating death in terrifying 125mph smash
Next article:'People investing with us will be rewarded:' Mark Zuckerberg DEFENDS 'historic' Metaverse plans notwithstanding adjacently $650 BILLION loss in market valuation this year - as Meta's stock plunges 11% and quarterly revenue falls for a second straight time
- ·Montana to become first US state to ban TikTok
- ·Arsenal's £62m second bid for Mykhaylo Mudryk to be REJECTED, with Chelsea now offering rival... and Shakhtar Donetsk see £100m Jack Grealish and £85m Antony deals as benchmark for fee
- ·Real Ho utilizewives of Salt Lake City's Jen Shah sentenced to six and a half years in priconsequentlyn: Reality star consequentlybbed in court as she told judge she was 'deeply consequentlyrry' for fraud scheme that targeted the elderly
- ·Idaho murders suspect extradited from PA, mouthed 'I love you' to mom
- ·BREAKING NEWS: Sean Dyche IS the new Everton manager, with deal done for ex-Burnley boss to fight to save Toffees from relegation after Marcelo Bielsa said no... and with an announcement prepared today
- ·BREAKING NEWS: Chelsea announce the £8m signing of Ivorian wonderkid striker David Datro Fofana, 20, from Erling Haaland's former club Molde - their first buy of a busy January window
- ·BREAKING NEWS: Al-Nassr's match is OFF beca utilize of heavy rain causing electrical problems at the stadium in Riyadh - with fans desperate to see if banned new signing Cristiano Ronaldo would make his debut
- ·Police on the hunt for prime suspect in murder of former NFL player Antonio Dennard after identifying handprint on car outside Reading, Pennsylvania bar
- ·China bans major chip maker Micron from key infrastructure projects
- ·Elon 'speaks paying rent on Twitter's San Fran HQ and offices around world - as he takes NOT paying severance to axed employees' and sells off woke items in cost-cutting exercise
- ·Ho utilize adjourns for the day with NO Speaker after Kevin McCarthy lost three ballots: GOP's first day with majority ends in farce with 20 rebels backing Jim Jordan instead of their leader
- ·Damar Hamlin moves to a Buffalo hospital from UC medical center just a week after his cardiac arrest as 'ecstatic' doctors reveal he was 'jumping up and down' watching the Bills on Sunday
- ·Classified documents found at former VP Mike Pence's home included briefing papers for foreign visits
- ·BREAKING NEWS: Alex Ovechkin officially moves to second on the NHL scoring list with 802 goals... passing Gordie Howe and just 92 goals behind Wayne Gretzky's record
- ·Putin is set to make 'crucial statement' about Ukraine war tomorrow according to Moscow-appointed official in Russian-held region
- ·Climate activists heckle Ted Cruz on The View: Whoopi Goldberg tells protesters to leave for trying to drown him out during shouting match over Trump, the election and January 6
- ·Princess of Wales's parents' componenty excellents firm consequentlyld
- ·French former Formula One driver Patrick Tambay dies aged 73 after a long battle with Parkinconsequentlyn's disease
- ·BREAKING NEWS: Cops release mugshot of armed driver, 20, whose out-of-control truck struck and killed girl at North Carolina Christmas parade after he yelled its brakes had speakped working
- ·Andrew Tate arrested in alleged human trafficking probe in Romania
- ·Top economist calls for 'lenient' migration rules
- ·Casualty on the track closes Barons Court Tube station: District Line is component suspended as TFL investigates
- ·Disney 'fired CEO Bob Chapek amid grumblets from senior staffers'
- ·'To my friend Thomas, thanks for lending me your jacket when i was cold': Heartbreaking tribute to three boys, aged eight, 10 and 11, who died after plunging into icy Solihull lake as fourth child, aged six, fights for his life
- ·Ed Sheeran, Adele, and Harry Styles among affluentest Britons under 35
- ·Police on the hunt for prime suspect in murder of former NFL player Antonio Dennard after identifying handprint on car outside Reading, Pennsylvania bar
- ·Classified documents found at former VP Mike Pence's home included briefing papers for foreign visits
- ·Idaho murder victim Kaylee Goncalves 'was consequently terrified of stalker who'd follow her around town she had friends walk behind her at all times,' local shop owner claims
- ·BREAKING NEWS: China deploys 71 warplanes to skies around Taiwan in chilling 'strike drill' - then condems US for 'provocations' and 'collusion' with self-governing island
- ·Celebrity makeup artist Laney Chantal, 33, who worked with Lil Nas X and emergeed on reality demonstrate Face Off died on Halloween after a 'severe anxiety assault' and overmedicating on prescribed drugs for multiple mental illnesses
- ·MP calls for Parliament probe of rate 'rigging' evidence
- ·USMNT defender Aaron Long signs with Los Angeles FC after seven seaconsequentlyns in the New York Red Bulls system... and logging 139 first-team emergeances since 2017
- ·'More cenconsequentlyrship than Hamas': Charlie Kirk tells Tucker Carlconsequentlyn 'Twitter Files' component two confirm his suspicion that he was being cenconsequentlyred after speaking out against pandemic lockdowns in 2020
- ·'A threat to democracy itself': Three men who plotted to kidnap Michigan Gov. Gretchen Whitmer are sentenced a combined 29 years in priconsequentlyn
- ·Jessica Pegula crashes OUT of the Australian Open as American star is beaten in straight sets by two-time champion Victoria Azarenka
- ·Horrifying moment gunman opens fire in Russian town leaving four dead