- Blockchain Bandit has moved 51,000 ETH to a single multi-signature wallet after two years of inactivity.
- The transfers occurred in multiple 5,000 ETH batches within a 24-minute window on December 30.
- The Hacker acquired the funds between 2016-2018 by exploiting weak private keys.
- Blockchain investigator ZachXBT identified and reported the consolidation movement.
- The total value of the consolidated ETH exceeds $120 million at current market prices.
Notorious Ethereum Hacker Consolidates $120M Holdings
A cryptocurrency attacker known as the Blockchain Bandit has consolidated 51,000 ETH ($120 million) into a single multi-signature wallet, marking their first significant on-chain activity since 2022. The movement, detected by blockchain investigator ZachXBT, occurred through a series of methodical transfers on December 30, 2023.
Strategic Fund Movement
The hacker transferred the funds from 10 different addresses to a multi-signature wallet (0xC45…1D542) between 8:54 PM and 9:18 PM UTC. According to ZachXBT’s analysis, the transfers were executed in systematic 5,000 ETH batches, suggesting a coordinated consolidation strategy.
Historical Context and Method
Between 2016 and 2018, the Blockchain Bandit accumulated their ETH holdings through a unique attack vector: exploiting weak private keys. Private keys, which function as cryptographic passwords for cryptocurrency wallets, became vulnerable when users generated them with insufficient randomness or complexity.
The attacker developed a system to identify and target these susceptible wallets, effectively guessing their private keys through computational methods. This technique, while relatively simple, proved highly effective during Ethereum’s early years when wallet security practices were less sophisticated.
The recent consolidation raises questions about potential future movements, as large cryptocurrency holdings often attract market attention when concentrated in single addresses.
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