An American cryptocurrency executive held in Nigeria for the past eight months has been released after authorities there announced that they were ending his money laundering trial on health and diplomatic grounds

After once calling cryptocurrency a scam, Donald Trump has thrown his support behind World Liberty Financial, a crypto venture whose business model is largely unclear.

Sam Bankman-Fried, the founder of bankrupt crypto exchange FTX, was convicted because of a "false narrative," according to his defense team.

The impacts of these schemes are devastating.

Crypto investment scam losses rose from $3 billion in 2022 to $4.5 billion in 2023, the FBI said.

Brooklyn-based victims were scammed out of $5 million after they were convinced to invest in cryptocurrency.

Trump has thrust the issue into the forefront of the campaign.

ABC News' Mireya Villarreal speaks to writer, entrepreneur and influencer Nathaniel "Nat" Eliason about his new book.

Energy usage of data centers is expected to soar in coming years, experts say, threatening the climate.

Authorities are warning about "pig butchering," where scammers strike online conversations with unsuspecting victims and steer them into bogus cryptocurrency investments.

Former crypto entrepreneur Sam Bankman-Fried told ABC News in an exclusive interview that he is remorseful for his actions.

In written responses provided exclusively to ABC News, Bankman-Fried insists he feels remorse: “I never thought what I was doing was illegal.”

In addition to the 25 years in prison, Bankman-Fried was ordered to forfeit $11 billion to compensate victims. It is one of the stiffest white-collar sentences handed down in recent years.

Sam Bankman-Fried was sentenced to 25 years in prison Thursday for orchestrating what prosecutors have called one of the biggest financial frauds in American history.

Former FTX CEO Sam Bankman-Fried is set to be sentenced for a multibillion-dollar fraud scheme.

The price of the cryptocurrency surpassed $72,000 on Monday.

A U.K. financial regulator gave the green light to a cryptocurrency-backed investment vehicle on Monday.

Bitcoin has climbed more than 20% over the past four days.

The lawsuit, filed in Manhattan federal court, also named Iran and Syria and is the first of what could be a torrent of lawsuits over the Hamas attack against Israel.

A pastor and his wife who created a cryptocurrency targeting Christians and used the money to fund their “lavish lifestyle” has been charged with fraud, authorities say.

Bitcoin ETFs promise significant potential gains but also notable risks.

The Securities and Exchange Commission will decide whether the Bitcoin investment product is legal.

President Bukele says that the country is now making a profit on Bitcoin investment amid economic and social reforms in the country.

Binance founder Chengpeng Zhao to plead guilty to money laundering charges, DOJ said Tuesday.

Binance CEO and founder, Changpeng Zhao set to plead guilty to violating U.S. anti-money laundering laws; Zhao is expected to step down and pay $50 million fine.

FTX founder Sam Bankman-Fried is standing trial nearly a year after the cryptocurrency trading platform's collapse.

FTX founder and former crypto billionaire Sam Bankman-Fried continued to testify Tuesday at his federal fraud and conspiracy trial.

FTX founder Sam Bankman-Fried told the jury Monday he confronted Caroline Ellison with concerns Alameda Research could become insolvent.

Sam Bankman-Fried believed in utilitarianism and said rules against lying or stealing inhibited his ability to maximize the greatest benefit, his ex-girlfriend testified.

Disgraced crypto executive Sam Bankman-Fried thought there was a "5% chance he would become president," his ex-girlfriend testified Tuesday.

ABC News’ Linsey Davis spoke with author Michael Lewis about his new book, “Going Infinite: The Rise and Fall of a New Tycoon,” on the collapse of Sam Bankman-Fried’s crypto empire.

Sam Bankman-Fried's trial could last as long as six weeks.

Meanwhile, the Federal Trade Commission could soon ban fake product reviews online.

Prosecutors had dropped the charge against Bankman-Fried last month on a technicality.

Prosecutors balked at Bankman-Fried's sharing with The New York Times excerpts from the personal documents of Caroline Ellison, who led his Alameda Research hedge fund.

Alexander Mashinsky founded Celsius in 2018.

Federal prosecutors alleged Alexander Mashinsky was misrepresenting the company’s financial health before it collapsed into bankruptcy a year ago.

The largest U.S. cryptocurrency platform is accused of operating illegally because it failed to register as an exchange.

Bitcoin has benefited from a shift to well-known coins, experts said.

The digital currency benefited from a shift to well-known coins amid crypto woes: Experts

Nima Momeni, the owner of an IT company, has been charged with murder.

Nima Momeni, the owner of an IT company, has been charged with murder.

Court documents released Friday revealed gruesome details about the stabbing of tech exec Bob Lee. Authorities say that Lee may have known the suspect, now in custody.

San Francisco police arrested fellow tech entrepreneur Nima Momeni, 38, in the death of CashApp creator Bob Lee, who was found stabbed earlier this month.

"You have people talking about carrying pepper spray," a local employee said.

Cash App founder Bob Lee was stabbed and killed on the street in San Francisco, police said. ABC News’ Derricke Dennis has more.

Police responded to a report of a stabbing early Tuesday morning in San Francisco and later confirmed the tech entrepreneur's identity.

Embattled crypto executive Sam Bankman-Fried now faces a criminal charge of conspiracy to violate the anti-bribery provisions of the Foreign Corrupt Practices Act.

A cryptocurrency linked to former Trump White House strategist Steve Bannon and Trump adviser Boris Epshteyn has caught the attention of federal prosecutors, sources say.

ABC News’ Elizabeth Schulze reports on the debate raging over a proposed Federal Trade Commission policy that would ban non-compete clauses in contracts.