The exchange says it has replaced most of the stolen crypto from its own funds, but customers pulled out $3.6 billion more than they put in after the restart.
Binance began letting customers pull crypto out again on Sunday, less than three days after attackers drained roughly $6.3 billion from the exchange’s hot wallets. Investigators say it is the largest crypto theft on record. Within hours of the restart, customers had withdrawn billions more than they deposited, though the company says volumes settled after an initial spike.
The world’s biggest crypto exchange by trading volume says it has replaced about 95% of the stolen assets with its own money and will not pass the loss on to users. “Binance will absorb the financial impact of the stolen funds, not our users,” the company said in its Nov. 1 recovery update.
How the theft unfolded
According to blockchain intelligence firm TRM Labs, most of the money left Binance-controlled wallets in about 20 minutes starting at 20:05 UTC on Oct. 29, with a second wave about three hours later. The attacker moved funds across 10 blockchains, including Bitcoin, Ethereum, Tron, Solana and the XRP Ledger. TRM’s analysis values the haul at about $6.36 billion at the prices when each transfer happened. That figure includes 18,270 bitcoin and more than 200,000 ether, and it is about four times the $1.5 billion taken from rival Bybit in February 2025.
Binance’s own early findings point to a compromised laptop belonging to a DevOps engineer. The exchange said the attacker used it to reach a service container and submit unauthorized withdrawals. It later said investigators had found additional points of entry, and it has repeatedly said there is no evidence that wallet private keys leaked. TRM says that on Ethereum the attacker used a pre-authorized delegation feature to turn a hot wallet into a sweeper. A full post-incident report has been promised once the investigation ends.
| Date (UTC) | Development |
|---|---|
| Oct. 29, 20:05 | Outflows from Binance hot wallets begin |
| Oct. 30 | Binance estimates the impact at roughly $6.3 billion, notes that about $3 billion remains frozen, and suspends withdrawals |
| Oct. 31 | The FBI identifies North Korea’s TraderTraitor; Binance announces that 90% of the losses have been replenished and captures a reserves snapshot |
| Nov. 1, 06:00 | The initial phase of withdrawals is launched; all 15 starting networks become operational by 12:36 |
| Nov. 2 | Binance finalizes its proof of reserves for 10 primary tokens |
Who is being blamed
The attribution comes from investigators, not from Binance. TRM said the attack was carried out by TraderTraitor, a North Korean state hacking unit. “We make this judgment with high confidence,” the firm wrote. Chainalysis chief executive Jonathan Levin said the group was the likely culprit, citing links to earlier thefts.
On Oct. 31, the FBI publicly attributed the theft to North Korea and named TraderTraitor, the same group it blamed for the Bybit hack. The bureau said the hackers were converting stolen tokens into ether ahead of further laundering, and it urged crypto businesses to block transactions tied to the group’s addresses.
Frozen funds and the cost of making users whole
About half of the stolen value has been immobilized, mostly because stablecoin issuers can lock tokens on their own networks. Binance reported that approximately $3 billion had been frozen with assistance from blockchain collaborators. Tether noted it locked roughly $1.6 billion in USDT, while Circle restricted over $800 million in USDC, AFP conveyed. TRM’s calculation, which likewise includes freezes carried out by Ripple and World Liberty Financial alongside an intervention by Arbitrum’s Security Council, reached roughly $2.7 billion. Bitcoin and ether cannot be frozen using the same mechanism. When TRM released its assessment, it estimated that about $2.4 billion remained in the hands of the attackers.
Binance’s balance sheet is bearing the weight of covering the remaining deficit. The exchange disclosed that upwards of $6.34 billion in proprietary capital has been allocated. According to an Oct. 31 update, these funds stem from its corporate treasury, a segment of its futures insurance fund, and a partial withdrawal from SAFU, an emergency safety net established back in 2018. Data cited by Cointelegraph indicates that Binance transferred 7,499 bitcoin out of the SAFU wallet on that date, which accounts for roughly half of its reserves there. The firm stated its intention to replenish the pool to approximately $1 billion, though a specific timeline remains undisclosed. The final 5% of the shortfall consists of less liquid digital assets that are currently being acquired through open markets and over-the-counter channels.
Withdrawals come back, and users put the platform to the test
Withdrawals reopened in phases from 06:00 UTC on Nov. 1, starting with assets that saw the most demand in the prior week, including bitcoin, ether, BNB, XRP and major stablecoins. By 12:36 UTC, all 15 networks in the first phase were live, according to Bloomberg. Binance says more assets will follow as security checks are completed, but it has not published a full schedule.
Customers moved quickly. Between 06:00 and 15:30 UTC on Sunday, Binance processed about $4.65 billion in withdrawals against $1.01 billion in deposits, for net outflows of $3.64 billion, according to figures the company shared. That equals about 2.1% of the $171 billion in assets Binance said it held on Oct. 28. Third-party trackers such as DefiLlama showed larger 24-hour drops. Binance co-chief executive Yi He said some of those flows were transfers between the exchange’s own wallets.
On reserves, Binance said on Monday that cryptographic proof was complete for an Oct. 31 snapshot covering 10 tokens, including bitcoin, ether and USDT, each backed at least 1:1. That snapshot predates Sunday’s outflows. A new snapshot covering more tokens is planned for Nov. 4.
Market reaction
Prices fell as news of the theft spread. Bitcoin and ether dropped nearly 5% and 6% before recovering much of the decline, and Binance’s BNB token briefly fell nearly 10%, AFP reported. By Monday, bitcoin was trading around $77,500 to $78,000, roughly 5% below its level before the attack.
The tests ahead are whether the remaining networks reopen on time, whether the next reserve snapshot holds up after the outflows, and how much of the frozen money is eventually returned. Law enforcement has not said how much it expects to recover.
