Vitalik Buterin urges crypto security focus after Binance hack

Ethereum co-founder Vitalik Buterin has advised cryptocurrency exchanges and custodians to enter “bunker mode” for the next two years, prioritizing asset security over market competition. This recommendation follows a massive breach at Binance on October 29, 2026, where hackers reportedly drained approximately $6.3 billion from hot wallets.

Investigators have linked the Binance incident to TraderTraitor, a group allegedly affiliated with North Korea. The breach was reportedly achieved through social engineering and malware rather than exploiting code vulnerabilities, involving the compromise of a DevOps engineer’s laptop. Binance has stated it intends to cover up to 98% of the stolen assets using corporate funds and has begun resuming customer withdrawals on a staggered basis.

Buterin warned that the industry’s focus must shift toward collective security to prevent capital exodus and to shape how regulators approach the sector. He noted that recent attacks have increasingly targeted user interfaces and centralized components rather than smart contracts. The security landscape remains volatile, as evidenced by a recent breach at Brazil’s largest exchange, Mercado, which also temporarily suspended trading.