Bitcoin network used by exchanges hit by $320 million exploit. Hackers claim they're the 'good guys'

Hackers exploited a vulnerability in a Bitcoin-related network used by multiple exchanges to siphon roughly $320 million in assets, according to reports. The attackers are publicly framing themselves as "good guys," claiming to be testing security or offering to return funds, while affected platforms have opened investigations. The incident underscores persistent custodial and protocol-level risks tied to exchange infrastructure, increases short-term pressure on Bitcoin markets, and is likely to prompt accelerated audits, tighter security practices and heightened regulatory scrutiny.