The Binance hack had an estimated impact of around $6.3 billion, the cryptocurrency exchange said on October 30, 2026. Its initial investigation suggests a compromised engineer’s laptop may have given an attacker access to a service container used to submit unauthorized withdrawals.

Key Takeaways

  • Binance said approximately $3 billion had been frozen on-chain.
  • The exchange pledged to cover all losses using its SAFU fund and company funds.
  • Deposits and withdrawals remained suspended while remediation continued.

Binance hack investigation focuses on laptop

In a statement at 02:25 UTC on October 30, Binance said the incident may have involved a compromised DevOps engineer’s laptop. The exchange said the attacker gained access to a service container and submitted unauthorized withdrawal transactions.

Binance said it had found no evidence that wallet private keys had leaked and had revoked the affected address authorization. Its investigation remains preliminary.

Coverage and suspended transfers

Binance said it would cover all losses from its Secure Asset Fund for Users, or SAFU, and company funds. It did not provide a breakdown of how much each would contribute.

The exchange said roughly $3 billion had been frozen on-chain so far. Deposits and withdrawals remained suspended, and Binance did not provide a reopening date.

How account delegation works

On-chain activity indicated that a Binance hot wallet was directed to run a contract using EIP-7702 delegation. Binance’s initial account did not establish how that delegation related to the suspected laptop compromise.

Ethereum’s EIP-7702 guidance explains that an account can point to deployed code through an authorization signed by its private key. That guidance describes the mechanism, not the cause of the Binance incident.

Next milestone

Binance said it would publish an updated proof of reserves after remediation and a detailed technical post-mortem.

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