Despite establishing around 700 weak private keys that are being regularly used by multiple people, the researchers found a “blockchain bandit” who has managed to collect almost 45,000 ether (ETH) by successfully guessing those frail private keys. Cointelegraph interviewed Adrian Bednarek, a senior security analyst at ISE, to find out more about what they describe as “ethercombing.”
Research background and chief findings
Bednarek says he discovered the hacker by accident. At the time, he was doing research for a corporate client that planned to implement their own wallet with an integrated key generating algorithm.