Fake News About US Tariffs Misled Media, Investors, and Caused a Sharp Drop in Markets
A rumor spread on X (formerly Twitter) caused a $2.4 trillion fluctuation in the global financial market this Monday (8). In just ten minutes, investors reacted en masse to a false news story about US trade tariffs. The information, denied shortly afterward by the White House, reveals how digital misinformation continues to impact entire economies, according to the site Revista Forum.
What Happened: Fake News with a Blue Check
The episode began after a live interview with Kevin Hassett, economic advisor to the US, on Fox News. When asked about the possible suspension of trade tariffs, he gave vague answers. Shortly after, verified accounts began to publish a supposed announcement from the US government.
- The account “Hammer Capital” claimed that the US would suspend tariffs for all countries except China.
- The rumor was replicated by paid blue check profiles, confusing users and news outlets.
- The account “Walter Bloomberg” also spread the information, unrelated to Bloomberg News.
- Reuters and CNBC reported the supposed measure but deleted the posts minutes later.
Immediate Impact: Market Reacted in Seconds
According to Dow Jones Market Data, the global market lost $2.4 trillion in market value right after the rumor spread.
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PCC and Comando Vermelho enter the U.S. terrorism list and the Brazilian market is already trying to understand where this might hit first.
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The military’s preschool assistance receives an 8.6% adjustment and now has a new value throughout Brazil, expanding financial support to Armed Forces families at a time of rising educational costs.
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Celso Portiolli flies over a beach in SC by helicopter, calls the destination the ‘diamond of Brazil’ and buys an apartment for up to R$ 2.4 million in a city of 27,000 inhabitants that moved R$ 4 billion in real estate.
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Lula says that the Brazilian naval industry will “thrash” China and Korea, while the government announces billions for barges, pushers, and a new hydro terminal in the Amazon.
- Drops in American and European stock markets
- Sudden fluctuations in the dollar and commodities
- Institutional investors were affected
The White House officially denied the information still in the afternoon of Monday, but the damage was already done.
Rumors That Became Reality: Experiment Showed the Danger
In 2023, streamer Zealand did an experiment:
- Created a rumor about the transfer of player Ismaïla Sarr to Everton.
- Verified accounts spread the false information.
- Betting sites adjusted the odds by over 300% in just a few minutes.
“I was disturbed by how easy it was to manipulate the system,” said Zealand after seeing his test go viral globally.


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