Cardano-focused crypto wallet SecondFi suffered a security breach between June 21 and June 23, 2026. Attackers compromised 374 digital wallets and stole 16.1 million ADA tokens worth approximately $2.4 million to $2.6 million. The technical team managed to secure an additional 129 million ADA that were at risk. Investigators found digital markers linking the attack to Lazarus Group, the North Korean state-sponsored cybercrime organization. SecondFi, formerly Yoroi Wallet by EMURGO, announced the complete wind-down and liquidation of its brands while launching a three-stage compensation plan for affected users.
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