Hackers Divert R$ 8.6 Billion In Record Cryptocurrency Theft

Written by Romário Pereira de Carvalho

Published on 27/02/2025 at 14:15

Foto: IA Criptomoedas

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Understand The Details Of The Biggest Cryptocurrency Theft In History, With Information About The Stolen Amount, Attack Strategies, And Consequences

In February 2025, the world of cryptocurrencies was shaken by an unprecedented cyber attack. Bybit, a prominent global exchange, had US$ 1.5 billion diverted in a single criminal action.

The amount, equivalent to R$ 8.6 billion, surpassed the previous record of the Poly Network theft in 2021, which totaled US$ 610 million.

The impact was not only from the amounts involved. The sophistication of the attack drew the attention of experts and investors, raising doubts about the real effectiveness of protective systems in the sector.

ARTICLE CONTINUES BELOW

How The Theft Happened

The attack was detected when Bybit noticed “unauthorized activity” in one of its cold cryptocurrency wallets.

This wallet, used to store Ethereum and Staked Ether (stETH), is considered more secure for operating offline. It still had a multisig system, which requires multiple signatures to authorize transactions.

Despite these layers of protection, the cybercriminals managed to bypass the system. The theft occurred during a routine transfer between the cold wallet and hot wallets — the latter connected to the network and used for daily transactions.

The hackers manipulated the smart contract protocol, altering the transaction signature interface.

This change led those responsible for the private keys to believe they were validating a legitimate operation. In reality, the transaction authorized the sending of approximately 400,000 units of ETH and stETH to a single wallet controlled by the criminals.

The Suspects Behind The Attack

Investigations point suspicions towards the Lazarus Group, a group of cybercriminals from North Korea. Known for their ability to carry out sophisticated attacks, the Lazarus Group has a history in the sector, including the theft of US$ 550 million from the Axie Infinity network.

Experts indicate that the tactics used in the Bybit attack — such as interface manipulation and social engineering — are characteristics of the group.

The association of the Lazarus Group with the North Korean government and their experience in complex invasions strengthen the hypotheses that they are involved in this new case.

Implications For The Cryptocurrency Market

This episode highlights a critical issue: even systems with multiple layers of security are not immune to failures. The attack on Bybit demonstrates that the human factor is still the most vulnerable point. The engineering employed by the offenders exploited this very fragility.

The case has raised an important alert for the market. The need to reinforce protective measures and expand training for sector professionals is becoming urgent. Awareness of manipulation techniques can be decisive in preventing new attacks.

Despite the blow, Bybit declared resilience. The exchange was able to raise funds quickly to maintain its operations. Now, efforts are concentrated on tracing and freezing the diverted funds, attempting to prevent them from being laundered through anonymous transfers to bitcoin.

This theft, the largest in cryptocurrency history, reveals the growing sophistication of cybercrime and exposes critical challenges for the future of digital security in the sector.

With information from Terra.

Hackers Divert R$ 8.6 Billion In Record Cryptocurrency Theft

Understand The Details Of The Biggest Cryptocurrency Theft In History, With Information About The Stolen Amount, Attack Strategies, And Consequences

How The Theft Happened

The Suspects Behind The Attack

Implications For The Cryptocurrency Market

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Hackers Divert R$ 8.6 Billion In Record Cryptocurrency Theft

Understand The Details Of The Biggest Cryptocurrency Theft In History, With Information About The Stolen Amount, Attack Strategies, And Consequences

How The Theft Happened

The Suspects Behind The Attack

Implications For The Cryptocurrency Market

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