Largest Cryptocurrency Theft in History at 8 Trillion Won 5:20 a.m., 63 Billion Dollars Drained in 20 Minutes… Binance Hack Timeline

The largest theft in cryptocurrency history was completed in just 20 minutes. In the early hours of the 30th Korean time, approximately 6.3 billion dollars—8.4 trillion won in Korean currency—disappeared from Binance, the world's largest exchange, from its hot wallet. However, the timeline of this incident began much earlier. Based on tracking by blockchain analysis firms, the incident has been reconstructed chronologically.

◇ D-36 Hours: Quiet Preparation

The attack was not improvised. According to TRM Labs, an analysis firm, the attackers began their operations at least 36 hours in advance. They pre-created wallets to receive funds from "Tornado Cash," a money laundering tool, and prepared "signed approvals" to make Binance's hot wallet (internet-connected wallet) execute the attacker's code. There was no evidence of private keys being stolen. Rather than duplicating the key, they made the safe open itself.

◇ October 30, 5:20 a.m.: 20 Minutes of Drainage

Around 5:20 a.m. on October 30 Korean time (4:20 p.m. U.S. Eastern time on the 29th), assets began moving almost simultaneously across 10 blockchains. According to cross-verification by Chainalysis and TRM Labs, approximately 6.3 billion dollars. In some cases, over 2.5 billion dollars moved in a single transaction. The drainage was complete in approximately 20 minutes. That's 400 billion won per minute.

◇ Same Morning: "Your Money Is Safe"

Binance immediately halted all deposits and withdrawals. Founder Changpeng Zhao (CZ) wrote, "It appears to be hacking," but also stated, "User funds are safe," while co-CEO Richard Teng declared, "Here's the point: your money is safe, and we will cover all losses." The company secured 6.34 billion dollars from its emergency fund SAFU and its own capital, and announced that 80% of the affected assets are held in the same coin. In an initial announcement, the company identified the breach point as the compromise of a DevOps engineer's laptop.

◇ 7:46 a.m.: Defense Line of Seoul Exchanges

Seoul's morning began with announcements. Upbit issued a caution and withdrawal restriction notice to Binance at 7:46 a.m., followed by Bithumb and Coinone. No individual losses among domestic users were reported, and there has been no official statement from financial authorities. The market was shaken. Bitcoin plummeted 5%, briefly hitting 76,300 dollars, a 6-week low, with liquidations on Bitcoin futures alone reaching 479 million dollars. Stock prices of Coinbase and Robinhood also declined sharply in tandem.

◇ Afternoon That Day: The Perpetrator's Fingerprint

On-chain tracking was swift. Chainalysis, TRM Labs, and Elliptic simultaneously identified the Lazarus group affiliated with North Korea's Reconnaissance General Bureau, the hacking organization "TraderTraitor." The decisive evidence was the real-time mixing on-chain of funds stolen from Bitget exchange last month and the funds from this incident. With Tether freezing 1.57 billion dollars, approximately 2.8-3 billion dollars have been frozen to date, and the FBI and Secret Service have launched a joint investigation. North Korea's cumulative cryptocurrency theft, including this incident, is estimated to have exceeded 6.5 billion dollars.

◇ October 31 and Remaining Questions

As a day passed, the incident became more complex. CEO Teng corrected his statement, saying that not just one laptop but "additional breach points were discovered," and the exact attack vector remains under investigation. Binance has begun sequentially resuming withdrawals and announced it will disclose Proof of Reserve (PoR) on November 2. The scale is unprecedented. It is over 4 times the Bybit hack (1.5 billion dollars) from last year, and Elliptic assessed it may be "the largest theft of any kind in all of history, beyond cryptocurrency."

Nevertheless, the fact that this amount represents 3.9% of Binance's custodial assets (162.8 billion dollars) reveals the dual nature of the situation. Few exchanges in the world can fully compensate, and even those few have been breached. 36 hours of preparation, 20 minutes of execution, and an investigation still ongoing. Once again, what collapsed was not the lock of a safe, but people and operational procedures. The old adage against keeping your entire fortune on an exchange has gained an 8-trillion-won piece of evidence.