The $6.3 Billion Binance Hack: What Happened and What It Means for Your Bitcoin

On Thursday, October 29, 2026, Binance, the world's largest crypto exchange, was drained of about $6.3 billion in a few hours. It is the largest crypto theft on record, about four times the Bybit hack of February 2025. Here is what we know so far, what is still unclear, and what it changes for anyone holding bitcoin.

What happened

According to on-chain analysis by TRM Labs, the attack was prepared for at least 36 hours. On October 28, the attacker's wallet was funded with small withdrawals from the Tornado Cash mixer. Early on October 29, the attacker tested its code on several wallets before using it against Binance.

The theft itself took place on the evening of October 29, UTC:

Binance founder Changpeng Zhao was among the first to say publicly that the exchange appeared to have been hacked. Binance then confirmed a security incident and suspended withdrawals on multiple networks, and later all deposits and withdrawals.

Total impact, per Binance

$6.3B

Total impact, per Binance

BTC sent from a Binance hot wallet

18,270

BTC sent from a Binance hot wallet

Frozen so far

~$3B

Frozen so far

How the attackers got in

This is the part that is still being investigated, and the accounts do not fully match yet.

• Binance's first findings, reported by CoinDesk and Al Jazeera, point to a compromised engineer's laptop. It gave the attacker access to a service container, from which it could submit unauthorized withdrawals. Binance says it found no evidence that any wallet private key leaked.
• TRM Labs describes a more elaborate method on Ethereum: the attacker used pre-signed authorizations under EIP-7702, a recent Ethereum feature that lets a regular wallet act like a smart contract. That turned a Binance hot wallet into a contract only the attacker controlled. Because transfers on other chains used standard signatures, TRM believes the hot wallet signing systems themselves were compromised.

Both can be true at once: a laptop as the way in, and the signing systems as the target. Binance has promised a detailed technical post-mortem once its investigation is over.

Who is behind it

TRM Labs attributes the attack, "with high confidence", to TraderTraitor, a North Korean state-backed unit linked to the Lazarus Group. The FBI blamed the same group for the $1.5 billion Bybit hack in 2025. Chainalysis and the on-chain investigator ZachXBT also point to North Korea.

The patterns are familiar: small mixer deposits to fund the operation, a long staging period, then signatures prepared in advance and fired in one burst. Binance itself has not named a culprit and says it is working with law enforcement.

Where the money is now

Part of the loot was frozen quickly, because stablecoin issuers can block tokens at their source:

• Tether froze about $1.57 billion in USDT.
• Circle froze about $800 million in USDC.
• Ripple, World Liberty Financial and the Arbitrum Security Council froze smaller amounts.

Bitcoin and ether cannot be frozen that way. The attacker still controls the 18,270 BTC, split into chunks of 1,000 and 100 BTC, and more than 420,000 ETH, partly obtained by swapping stolen stablecoins before they were frozen. Analysts expect these funds to be laundered over the coming months through bridges, swap services and over-the-counter brokers.

Is Binance in trouble?

Binance says user funds are safe and that it will cover all losses with its SAFU emergency fund, created in 2018, and its own funds. Co-CEO Yi He wrote that the platform would cover "all hacking losses", and Changpeng Zhao said he expects user funds to be fully covered. Analysts quoted by the press do not see an immediate solvency risk.

The market still reacted: in the hours that followed, bitcoin fell almost 5% to below $77,000, ether lost close to 6% and BNB about 8%. Deposits and withdrawals will resume, Binance says, once the security issue is resolved.

What it means for your bitcoin

A hack this size is a reminder of a simple fact: bitcoin held on an exchange is held by the exchange. You have a claim on it, not the coins themselves. Most of the time that is fine. On a day like October 29, it means your funds are frozen until someone else decides otherwise.

A few habits make a real difference:

1. Keep long-term savings in your own wallet. A hardware wallet, with a seed phrase backed up offline, puts the keys in your hands. Read How to Withdraw Mining Rewards to Your Bitcoin Wallet to set one up.
2. Leave on platforms only what you actively use. Trading balances, pending orders, recent rewards. Not your savings.
3. Withdraw regularly. The fewer funds sit on a single platform, the less a single incident can touch.
4. Expect security checks. Pauses, delays and extra verifications are annoying, but they are what stop an attacker who got in through one machine.

How FastBTCMining handles withdrawals

No platform can promise it will never be targeted, and we won't either. What we can do is keep your rewards from piling up with us. On FastBTCMining, your mining rewards are credited as your miner runs, and you can withdraw them to your own bitcoin wallet whenever you want, with zero withdrawal fees.

Withdrawals are sent instantly. Some are randomly selected for an additional security check, completed in under 12 hours: that is our answer to the kind of attack that hit Binance, where unauthorized withdrawals went out at machine speed. See How FastBTCMining Works for the full picture.

Frequently asked questions

How much was stolen from Binance?

Binance puts the total impact at about $6.3 billion. TRM Labs counts about $6.36 billion at the time of each transfer, Chainalysis about $5.9 billion. The figures differ because token prices moved during and after the theft.

Were Binance users' funds lost?

Binance says user funds are safe and that it will cover all losses with its SAFU fund and company funds. Users cannot withdraw until the exchange reopens withdrawals.

Who hacked Binance?

Blockchain analytics firms, including TRM Labs and Chainalysis, attribute the attack to North Korea's TraderTraitor group, also known for the 2025 Bybit hack. Binance has not officially confirmed the attribution.

Can stolen bitcoin be recovered?

Rarely. Unlike stablecoins, bitcoin has no issuer that can freeze it. Recovery depends on exchanges and brokers blocking the funds when the attacker tries to cash them out, and on law enforcement seizures, sometimes years later.

This article is for general information only and is not financial, investment, legal or tax advice. Mining rewards depend on network difficulty, block rewards and the price of Bitcoin, and are not guaranteed.