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Cardano wallet software flaw leads to potential $20M+ losses in SecondFi breach

Pluang • June 24, 2026

SecondFi, formerly Yoroi, suffered a critical security breach on June 23 due to a flaw in its wallet key generation, compromising 178 wallets and resulting in confirmed losses of 16 million ADA ($2.4 million). Security firm SlowMist warns total...

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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.

SecondFi Exploit Results in Over $20 Million Loss for Cardano Users SecondFi, a Cardano wallet project, suffered a significant security breach due to vulnerabilities in its wallet generation software. The exploit compromised approximately 178 wallets, leading to confirmed losses of around 16 million ADA, valued at approximately $2.4 million. Security firm SlowMist estimates total potential losses could exceed $20 million, potentially affecting up to 129 million ADA and other tokens. Following the incident, SecondFi suspended services and urged users to migrate their funds to new wallets. The platform is conducting an independent technical audit to assess the full impact and has reported secondary scams targeting affected users. No compensation timeline has been disclosed, and the community is awaiting further updates from SecondFi and Emurgo, its parent organization. The breach raises serious concerns about wallet security within the Cardano ecosystem. 28 sources 66

Cardano wallet software flaw leads to potential $20M+ losses in SecondFi breach

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Extracted Entities

Attack Types (1)

Companies (3)