SecondFi Exploit Drains 374 Cardano Wallets, Over 16 Million ADA Stolen in Coordinated Attack

TLDR: The SecondFi exploit drained 374 Cardano wallets across four attack events between June 21–23, 2026. Approximately 16 million ADA worth $2.4M was stolen by two identified attackers across three automated waves. Emergency rescue efforts secured around 129 million ADA, with a dedicated restoration fund already established. Affected wallets are permanently compromised; users must avoid [...]

The post SecondFi Exploit Drains 374 Cardano Wallets, Over 16 Million ADA Stolen in Coordinated Attack appeared first on Blockonomi.