Upbit admits security flaw that could have allowed attackers to infer private keys after $30m hack

Cybernews • November 29, 2025

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Following a major $30 million hack, South Korean crypto exchange Upbit discovered a serious private key vulnerability .

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Upbit Identifies Private Key Vulnerability After $30M Hack Upbit, a South Korean cryptocurrency exchange, admitted to a serious vulnerability that could have allowed attackers to infer private keys following a $30 million hack. CEO Oh Kyung-seok of Upbit's parent company, Dunamu, confirmed the discovery of this security flaw on their platform. 2 sources 42

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