North Korea-linked hackers stole more than half of the over $2.7 billion taken in cryptocurrency hacks in 2025, as the country’s cyber operators increasingly targeted the operational infrastructure of major exchanges and outsourced the “cash-out” stage to a web of Chinese underground brokers, blockchain intelligence firm TRM Labs said.TRM said the biggest losses in 2023–2025 were increasingly tied to “infrastructure attacks” such as hot-wallet and key compromises, multi-signature signer compromises and fro ...