Binance Reserves Cover About 90% of $6.3B Hack Losses as SAFU Fills Gap
Binance estimates an October 29 security breach drained about $6.3 billion from its hot wallets and says company reserves cover roughly 90% of losses. A partial deployment of its SAFU fund is expected within 24 hours to close the remaining gap, with withdrawals targeted to resume November 1.
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What Binance Says Happened
Binance said on October 31 that it expects to partially deploy its Secure Asset Fund for Users (SAFU) within 24 hours, following an October 29 breach that involved unauthorized withdrawals from the exchange's internet-connected wallets. Binance puts the affected amount at approximately $6.3 billion in crypto assets. Sources differ on the scale of the buffer: CCN cites CryptoQuant's valuation of the Bitcoin-denominated SAFU fund at approximately $1.18 billion, while Crypto Briefing puts it at about 15,000 BTC, or roughly $1.17 billion at $77,700 per BTC. The two figures are close enough that the gap is immaterial to the overall picture.
How the Losses Are Being Covered
Binance says it has reserved more than $6.34 billion in company funds, of which $5 billion is held in the specific tokens affected by the incident. Holding the same assets that were taken, rather than their dollar equivalent, lets the exchange restore user balances without buying everything at once. According to the exchange, those reserves cover about 90% of losses. The partial SAFU deployment is meant to close the remaining 10%, with Binance planning to acquire the outstanding tokens through market and over-the-counter transactions to fully back BTC, ETH, USDT and other affected assets. Binance has said it will absorb all losses rather than pass them on to users.
Scale of SAFU Relative to the Loss
The sources agree that SAFU is small relative to the breach. At roughly $1.17 billion, the fund could not cover a $6.3 billion loss on its own, and corporate reserves carry most of the load. SAFU was created in July 2018 and has previously reimbursed users after a 2019 hack. Earlier in 2026, Binance converted its SAFU holdings entirely into Bitcoin, which means the fund's dollar value moves with the market. The fund is managed by Nest Clearing and Custody Limited under Abu Dhabi Global Market regulations. After the partial deployment, Binance plans to replenish SAFU to approximately $1 billion.
Near-Term Milestones
Withdrawals on Binance remain suspended and are expected to resume on November 1, 2026, once the SAFU deployment is complete. Three items will indicate whether the timeline holds: whether the partial deployment occurs within the promised 24-hour window, whether withdrawals resume on November 1, and how quickly SAFU is rebuilt to around $1 billion. The reported figures come from Binance's own estimates; neither source includes independent audit of the reserve balances or the breach totals.
Why It Matters
For Traders
Binance withdrawal resumption and the SAFU deployment timing over the next 24-72 hours will determine whether liquidity constraints on affected tokens ease or persist.
For Investors
A $6.3 billion breach tests whether exchange balance sheets, not insurance-style funds, are the real backstop for user assets across centralized platforms.
For Builders
Exchange-linked wallet security and hot wallet exposure remain the critical attack surface, so custody architecture should be reviewed against this incident.
This article is for information only and is not financial advice. Read the full disclaimer.
