Critics argue that TikTok’s Chinese parent company, ByteDance, makes the app a national security threat, potentially allowing it to share data about its American users or steer its algorithms at Beijing’s behest. This concern has spiraled into a slew of political action: A former president tried to ban the platform, and more than two dozen states have barred the app from government-owned devices — a panic that some describe as a threat to free speech in America.
The debate over TikTok is a stand-in for a host of political discontents. Here’s how TikTok went from a teen sensation to Washington’s boogeyman:
September 2016
Sept. 26
In China, ByteDance launches the lip-syncing social media app Douyin, the predecessor of what would become TikTok.
September 2017
Sept. 13
ByteDance rebrands Douyin into TikTok, targeting young people around the world.
November 2017
Nov. 9
ByteDance acquires Musical.ly, the popular lip-syncing app with an established following that inspired Douyin’s creation.
@beanswarm throwback to our most popular vid of 2018! #tiktokrewind #foryou #foryoupage #repost ♬ original sound - BeanSwarm
July 2018
July 4
Indonesia temporarily bans TikTok, citing concerns of “pornography, inappropriate content and blasphemy.” The ban was lifted less than a week later after the app agreed to censor some of its content.
August 2018
Aug. 1
Musical.ly, with its 100 million active users, and TikTok merge into one video app, triggering massive growth.
October 2018
Oct. 31
Worldwide monthly installs of TikTok surpass both Facebook and Instagram for the first time, according to Sensor Tower data, emphasizing the app’s power in an industry long dominated by American companies.
February 2019
Feb. 21
TikTok crosses 1 billion downloads globally on the App Store and Google Play.
Feb. 27
The Federal Trade Commission fines Musical.ly, now known as TikTok, $5.7 million over allegations that it collected children’s data, in violation of federal law. The FTC claims the company didn’t notify parents about the app’s collection of personal information from users under 13. The company had received thousands of complaints from parents of young Musical.ly users.
November 2019
Nov. 1
The U.S. government investigates TikTok over national security concerns, reviewing the 2017 deal in which Beijing-based ByteDance bought Musical.ly for up to $1 billion.
December 2019
Dec. 31
The U.S. Army bans TikTok on military devices, following a Pentagon missive urging employees to uninstall the app. The Pentagon generally avoids weighing in on individual social media companies, and the move reflects burgeoning concerns about the app.
April 2020
April 20
TikTok reaches a total of more than 2 billion downloads on the App Store and Google Play, generating the most downloads for any app in a single quarter.
May 2020
May 18
TikTok hires Disney executive Kevin Mayer as its new CEO, which is seen as an effort to win over American officials skeptical of TikTok’s Chinese roots and to grow the company’s entertainment prospects.
June 2020
June 20
TikTokers and K-pop fans claim they sabotaged President Donald Trump’s Tulsa rally registrations by reserving free tickets but having no intention of showing up.
July 2020
July 6
Secretary of State Mike Pompeo says the United States is considering banning Chinese social media apps, including TikTok, citing security and privacy concerns and setting off the Trump administration’s campaign against the app.
July 31
Trump says he plans to bar TikTok from operating in the United States because of national security concerns
August 2020
Aug. 5
Facebook launches Reels, a copycat feature in Instagram designed to compete with TikTok. The release illustrates TikTok’s dominance within younger audiences, as legacy social media companies scramble to replicate its success.
Aug. 6
The U.S. Senate approves a bill banning federal employees from using TikTok on government-issued devices, and Trump signs an executive order to effectively ban the use of TikTok in the United States.
@bjcalvillo @vincentmarcus ♬ original sound - Brandon Calvillo
Aug. 24
TikTok sues the Trump administration over its efforts to ban the app.
Aug. 26
Amid the Trump administration’s impending ban, Mayer resigns after three months as TikTok’s CEO.
Aug. 27
After Trump says TikTok can continue to operate domestically with American ownership, Walmart and Microsoft join forces in a bid to acquire the app’s U.S. operations.
September 2020
Sept. 27
A federal judge temporarily blocks the Trump administration’s ban on TikTok.
December 2020
Dec. 7
A second federal judge halts Trump’s TikTok ban, finding that the administration probably overstepped its authority and, by using presidential emergency powers, “acted in an arbitrary and capricious manner by failing to consider obvious alternatives.”
June 2021
June 9
President Biden revokes Trump’s TikTok ban but sets up a security review of foreign-owned apps.
March 2022
March 10
The White House briefs TikTok stars about the war in Ukraine, highlighting the app’s ascendant power as a news platform and a key tool in the Biden administration’s efforts to reach young people.
November 2022
Nov. 10
Sen. Marco Rubio (R-Fla.) and Rep. Mike Gallagher (R-Wis.) call for national ban on TikTok in a Washington Post op-ed, warning of TikTok’s supposed threat.
Nov. 29
South Dakota bans TikTok from state-owned devices, sparking a wave of state bans.
December 2022
Dec. 14
The Senate passes a bill to ban federal employees from using TikTok on government devices.
Dec. 22
ByteDance, TikTok’s parent company, fires four employees after an internal investigation found that they had accessed data on two journalists and other U.S. users while attempting to track down a company leak.
January 2023
Jan. 1
TikTok becomes the most-downloaded app in 2022, with about 730 million worldwide installations for the year, compared to Instagram’s 701 million and Facebook’s 641 million.
Jan. 10
Over a frenzied five-week stretch, nearly two dozen state governors and officials restrict TikTok in their states, dialing up the dim political sentiment against the app.
Jan. 24
The University of Wisconsin joins several universities in banning TikTok on system devices. Students quickly figure out loopholes, using their phones’ data plans rather than school WiFi to access the video app.
February 2023
Feb. 15
TikTok CEO Shou Zi Chew launches an aggressive push in Washington to prove that the Chinese-owned app is not a national security threat. The diplomatic offensive ends months of silence, a strategy shift for TikTok.
Feb. 27
The White House gives government agencies 30 days to ensure that they do not have TikTok on federal devices.
March 2023
March 15
The Biden administration pushes a plan that would require TikTok’s Chinese owners to divest from the popular app, in an escalation of the White House’s efforts to address national security concerns.
March 23
Shou Zi Chew appears before Congress for the first time. He struggles to diminish mounting worries that the app is a national security threat in a five-hour hearing that highlights the app’s precarious future in the United States.
May 2023
May 17
Montana becomes the first state to enact a total ban on the use of TikTok, imposing fines of $10,000 per day on any mobile store making the app available, and on TikTok itself if it operates the app within the state. The law, which is likely to be challenged in court, is set to take effect Jan. 1, 2024.
Editing by Karly Domb Sadof and Alexis Sobel Fitts.