After a hacker attack on SecondFi, the Cardano wallet platform, it announced that it was shutting down.

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Deep Tide TechFlow report: On July 22, according to CoinDesk, the Cardano wallet SecondFi was attacked due to a vulnerability in transaction-signing software; 374 wallets in total lost 16.1 million ADA (about $2.4 million). The platform announced a permanent shutdown. The vulnerability allowed attackers to derive private keys from transaction data visible on-chain. The Cardano network itself was not affected, and hardware wallet users were also not impacted.

Investigation by the blockchain intelligence firm Groom Lake, hired by EMURGO, shows that the main attackers were skilled and had sufficient funds; some clues point to North Korea’s Lazarus Group, but this has not been officially confirmed. SecondFi plans to release a wallet export tool in early August, and later that month to launch a zero-knowledge recovery portal. EMURGO has set up an asset recovery wallet, with the specific distribution timeline to be determined.

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