Polymarket is investigating dozens of suspicious bets tied to the upcoming US midterm elections, putting the prediction market’s ability to police potential insider trading under scrutiny just days before voters head to the polls.

South Korean cryptocurrency exchange Bithumb is investigating a security breach involving its internal employee mobile system, raising questions about whether customer information was exposed even as the company says its cryptocurrency trading infrastructure was not directly accessible through the compromised platform.

Sony-backed blockchain ecosystem Soneium plans to launch its native ecosystem token, SONEIUM, as it pushes to bring entertainment intellectual property (IP) onto the blockchain, opening new possibilities for creator funding, licensing and royalty distribution.

The company behind esports organization Ninjas in Pyjamas, is expanding its Bitcoin mining operation as the cryptocurrency market cools, betting that a quieter period offers an opportunity to build capacity before conditions improve.

OpenAI says it has proven “ETH” false — but Ethereum investors can breathe a sigh of relief. The AI giant is claiming to have overturned a decades-old computer-science hypothesis, not disproved Ether, Ethereum’s native cryptocurrency.

Anthropic’s planned Nasdaq listing will give public-market investors an opportunity to buy into the company behind the Claude family of AI models, but it will not necessarily give them a greater say in how the business is run.

Brazilian financial markets plunged after President Luiz Inácio Lula da Silva defeated Senator Flávio Bolsonaro in the presidential runoff, overturning investor expectations and triggering a sharp reassessment of the country’s economic outlook.

Elon Musk has warned that more than 200 specialist AI cloud providers could face a wave of failures and consolidation, raising questions about the sustainability of the infrastructure boom that has also attracted Bitcoin mining companies.

Argentine President Javier Milei has secured a major legal victory in the LIBRA memecoin scandal, with a federal judge dismissing the criminal case against him, his sister and nine other people despite the token’s dramatic collapse and reports of nearly $100 million in withdrawals from wallets linked to the project.

Fraudsters in Norway are exploiting people’s trust to steal physical gold through an unusual scheme: victims are persuaded to buy bullion for supposed safekeeping, only to be instructed to leave it in a forest, park or other public location where scammers can collect it.