SecondFI, a self-custody neofinance platform, has developed an asset recovery tool following a 2 million dollar exploit that occurred in June. The incident affected 374 Cardano wallets due to a deterministic nonce derivation flaw in the signing software. The platform uses zero-knowledge proofs to allow users to prove control of their wallet without revealing their seed phrase or private key. Two high-severity vulnerabilities were identified and fixed by zkSecurity during an independent audit. The tool is expected to launch in the coming weeks.
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