Cryptocurrency exchange Bybit recently reported a highly sophisticated cyberattack that resulted in the theft of over $1.46 billion worth of digital assets from one of its Ethereum cold wallets. This incident marks the largest recorded crypto heist in history.
The attack occurred during a transaction that was intended to transfer funds from a multisig cold wallet to a warm wallet. However, the process was compromised when the signing interface was manipulated, which made it appear that everything was functioning normally while the underlying smart contract logic was altered. This allowed the attacker to seize control of the cold wallet and redirect its assets to an unknown address.
Bybit’s CEO, Ben Zhou, reassured users that all other cold wallets remained secure. The company is cooperating with authorities to investigate the breach further.
Although Bybit has yet to confirm who was behind the attack, intelligence firms Elliptic and Arkham Intelligence indicated that the notorious Lazarus Group, linked to North Korea, is believed to be responsible. This incident surpasses previous significant crypto thefts, including the $624 million stolen from Ronin Network and the $611 million taken from Poly Network.
Independent researchers have connected this breach to a previous hack involving Phemex, which occurred in late January. The Lazarus Group has established itself as a major player in the world of cybercrime, allegedly conducting numerous cryptocurrency heists to fund North Korea’s endeavors amidst international sanctions. In 2024, the group reportedly stole around $1.34 billion across multiple hacks, accounting for 61% of all crypto stolen during that timeframe.
The increase in cryptocurrency heists is attributed to the lucrative nature of these crimes, the difficulty in attributing them to specific malicious actors, and the growing familiarity with cryptocurrency and Web3 technologies among organizations.
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