Comprehensive sources: fortune, Forbes and x
On February 21, according to Fortune, Bybit, the second largest cryptocurrency exchange in terms of trading volume after Binance, said that Friday's hacker attack cost it nearly $1.5 billion. According to a report by analysis firm Chainalysis, this is the largest theft in the industry's history, accounting for more than half of the total funds lost in hacker attacks throughout 2024.
According to Nansen, the total amount stolen at the time of the theft amounted to $1.44 billion. On-chain tracking of the funds showed that the hacker stole 401,347 ETH from Bybit wallets, worth approximately $1.12 billion, as well as staked ETH tokens worth $320 million.
Bybit CEO Ben Zhou confirmed in a post on Friday morning that a hacker took control of one of the platform's offline Ethereum wallets and transferred all its contents to an unidentified address. Data analysis firm Arkham Intelligence confirmed that Bybit recently experienced an outflow of $1.4 billion, which the hacker had moved to several different crypto wallets.
Zhou said in X's livestream that news of the hack had spooked Bybit's customers, who were fleeing the platform, resulting in "massive withdrawals". In total, we have received over 350,000 withdrawal requests since the hack (10 hours ago), and so far, there are still about 2,100 withdrawal requests pending. Overall, 99.994% of withdrawals have been completed. Despite the worst hack we have ever suffered (banking, crypto, finance), all Bybit features and products are still operating normally, and the entire team has been up all night, processing and answering customer questions and concerns. All hands on deck.
When asked how many customers would be affected, Shunyet Jan, head of derivatives and institutions, said "right now, everyone is affected".
As markets reacted, with bitcoin falling 3% and ethereum down 4%, Zhou sought to calm customers’ concerns, saying their assets remained safe. “Bybit is solvent even if the losses caused by the hack are irreversible. All customer assets are backed 1-to-1 and we can cover the losses,” he wrote on X, referring to the fiat or cryptocurrency reserves the company keeps to back its customers’ cryptocurrency holdings.
The $1.4 billion hack is the largest in the cryptocurrency industry’s history.
The amount pales in comparison to previous thefts, including the $615 million hack of the Ronin Network in 2022 and the $613 million hack of the Poly Network in 2021. Last year's largest hack targeted a Japanese cryptocurrency exchange called DMM Bitcoin, which lost more than $300 million.
While the identity of the Bybit hacker remains unclear, the Chainalysis report states that North Korean hackers were behind several major hacks last year and have been traced to other large thefts, including those targeting DMM Bitcoin and Ronin Network.
North Korean hackers are notorious for "employing advanced malware, social engineering, and cryptocurrency theft to fund state-sponsored operations and circumvent international sanctions," the report said.
The hackers currently hold more than 500,000 ETH, more than the 240,000 ETH held by Ethereum co-founder Vitalik Buterin. The stolen ETH has been dispersed into 53 wallets that are being actively monitored by blockchain security and smart contract audit teams. Given the high-profile nature of the attack, selling such a large amount of ETH is a challenge. Wallets track in real time, so it would be difficult for the hacker to move funds without being detected.
In addition, current market conditions are not conducive to liquidating such a large amount of ETH. If the hacker sells on a large scale, it may trigger a major market decline - just as Vitalik Buterin sold his ETH holdings at twice the size. However, since the hacker obtained the ETH at almost zero cost, achieving the highest selling price may not be a priority.
The hack occurred just before ETHDenver, one of the largest annual conferences in the Ethereum ecosystem, where projects usually announce major updates and new versions. ETHDenver has always been a market-positive event, where ecosystem projects announce their latest progress.
However, sentiment in the Ethereum community has been subdued over the past five weeks, fueled by internal disputes, criticism of Vitalik Buterin, and concerns about the future of the Ethereum Foundation. The hack further dampened enthusiasm, casting a shadow on an event that would normally drive positive momentum for ETH.
This revelation has sparked concern and caution among investors, primarily due to the ongoing challenges posed by inflation and market volatility. Despite these substantial unrealised losses, the bank still manages to maintain high-profit margins thanks to its attractive interest rates.
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