Billionaire Venture capitalist points to privacy and fungibility concerns, while debate grows over corporate bitcoin strategies such as Strategy’s massive holdings.

OKX introduces a native AI layer on OnchainOS for developers to build autonomous agents that trade, pay, and operate across 60+ networks.

Bitcoin climbed above $71,000, gaining more than 6% in 24 hours and leading broad advances in major cryptocurrencies.

A compromised Chrome extension with 7,000 users was updated to deploy malware, strip security headers, and steal cryptocurrency wallet seed phrases.

The module targets Claude Code, Claude Desktop, Cursor, Microsoft Visual Studio Code (VS Code) Continue, and Windsurf. It also harvests API keys for nine large language models (LLM) providers: ...

Bitcoin Fear & Greed Index hit 5, the most extreme reading ever (lower than FTX at 12 or Terra/Luna at 6). All previous extreme fear readings eventually preceded rallies of 150% to 1,400%. Recoveries ...

Authorities now have the upper hand against Nancy Guthrie’s purported kidnapper, according to a cryptocurrency expert. Bezalel Eithan Raviv, the CEO and founder of Lionsgate Network — a crypto ...

The bitcoin account associated with Nancy Guthrie’s expired ransom began showing activity Tuesday evening. About $152 worth of bitcoin appeared in the account’s publicly viewable logs — with the funds ...

Steven Goldstein is based in London and responsible for MarketWatch's coverage of financial markets in Europe, with a particular focus on global macro and commodities. Previously, he was Washington ...

In recent months, investors have been turning to silver and gold as safe-haven assets, rather than Bitcoin. The cryptocurrency hasn't fared particularly well when investors are feeling bearish about ...

Over the weekend, bitcoin miner Cango sold 4,451 bitcoin for around $305 million. According to a company press release, the sale was completed to partially pay down a bitcoin-collateralized loan.

To put it gently, Bitcoin (BTC-USD) has experienced a period of intense volatility lately. At times in the past week, the cryptocurrency traded at levels less than half its October 2025 peak of more ...