Key Highlights
- Chainalysis stated that the $6.4 billion Binance exploit was attributed with high confidence to the North Korean group TraderTraitor.
- It called it the largest crypto theft in history and detailed previously unseen automated laundering patterns involving thousands of rapid transactions that repeatedly circulate funds among addresses.
- Investigators identified a consistent programmatic sequence in which addresses receive exactly 1 TRX, then additional funds, before forwarding them onward.
On October 30, Chainalysis released its latest findings on the $6.4 billion Binance exploit, calling it the largest in crypto history and one of the single-largest financial crimes overall.
The blockchain analytics firm linked the attack with high confidence to the North Korean cybercrime group TraderTraitor, which has repeatedly targeted exchanges, DeFi protocols, and investors to fund the regime.
Chainalysis Links $6.4 Billion Binance Hack to North Korea
In its report published October 30, 2026, Chainalysis shared details of laundering patterns, which were not previously observed. Investigators mentioned that thousands of transactions occurred in a short period, which indicates that the attackers are using automation to obscure the trail of stolen funds.
Instead of simply moving assets forward, the funds are repeatedly circulated among addresses, often sent back to addresses involved earlier in the sequence.
According to the report, a common pattern was observed across many addresses in the Binance hack. For example, they first receive exactly 1 TRX, then receive additional funds, and then forward those funds to other addresses. This repeated sequence is related to a programmatic process designed to move and redistribute the stolen assets.
The firm also observed funds from the Binance theft commingling in real time with assets stolen in the previous month’s Bitget exploit, which had already been linked to North Korean actors. This direct on-chain connection provides solid proof that TraderTraitor was behind the Binance hack. Chainalysis is still tracking the remaining funds as the investigation proceeds.
Binance’s Initial Investigation Findings
Binance reported an estimated impact of around $6.3 billion from the security incident that began on October 29, 2026. Unauthorized withdrawals drained multiple hot wallets across multiple blockchains, including Ethereum, Bitcoin, Tron, and others, with the bulk of the activity occurring within roughly 20 minutes.
According to the post shared on X, the exchange’s initial investigation mentioned that a compromised DevOps engineer’s laptop allowed an attacker to access a service container and submit unauthorized withdrawal transactions.
“We have found no evidence of any wallet private key leak. We will share a detailed technical post-mortem once the investigation is complete and the facts are fully verified,” Binance stated in the post.
The company has ensured its customers to cover all losses by using its Secure Asset Fund for Users and corporate funds, confirming that user funds remain safe.
Various updates from Binance noted a more complex attack process beyond a single point of access. Analytics firms, including TRM Labs, aligned with Chainalysis in linking the operation to TraderTraitor based on tactics that mirrored prior North Korean-linked incidents, such as the 2025 Bybit hack.
Tether, Circle, and Arbitrum Move to Freeze Billions
In the hours following the exploit, multiple platforms coordinated to freeze related assets. Tether froze more than $1.5 billion in USDT, while Circle froze over $800 million in USDC. Other issuers and partners, including Ripple and World Liberty Financial, contributed additional freezes. Binance reported verified frozen amounts reaching approximately $2.5 billion to $3 billion, with some updates citing figures around $2.7 billion to $2.8 billion when including actions by Layer 2 networks.
The Arbitrum Security Council executed an emergency action to transfer and freeze roughly 74.56 million ARB and 8,425 ETH held in an address linked to the exploit on Arbitrum One. The funds were moved to an intermediary frozen wallet accessible only through further Security Council action or Arbitrum DAO governance. These efforts occurred without affecting other users or applications on the network.
