Upbit Hack Stemmed From High-Level Mathematical Exploit, Says Local Expert

A South Korean expert has suggested that the recent Upbit breach may have originated from a high-level mathematical exploit targeting flaws in the exchange’s signature or random-number generation system. Rather than a conventional wallet compromise, the attack appears to have leveraged subtle nonce-bias patterns embedded in millions of Solana transactions—an approach requiring advanced cryptographic expertise and significant computational resources. Technical Analysis of the Breach On Friday, Upbit operator Dunamu’s CEO Kyoungsuk Oh issued a public apology regarding the Upbit incident, acknowledging that the company had discovered a security flaw that allowed an attacker to infer private keys by analyzing a large number of Upbit wallet transactions exposed on the blockchain. His statement, however, raised immediate questions about how private keys could be stolen through transaction data source: https://beincrypto.com/upbit-hack-sophisticated-mathematical-exploit/