KoinlyticsADA news
CoinDesk 20 Books 8.7% July Gain Even as BTC and ETH Fade on the Last Day
Bitcoin closed July 31 at $63,870 and Ether at $1,890 after a 1.3% and 1.4% intraday slide, but the CoinDesk 20 still posted its largest monthly advance in a year at 8.7%.
Four DeFi breaches in one week, four different layers, one uncomfortable pattern
AFX bridge lost $24.15M to oracle abuse. Zilliqa's Ledger app leaked nonces. SecondFi's Cardano wallet exposed signing keys, draining $2.4M. Lien Finance's permissionless bond registration burned $542K. Four incidents, four layers, one blind spot in standard audits.
Zilliqa Fixed 64 Bits Of The Nonce At Zero. SecondFi Left The Secret Out Entirely. Two Chains, Same Bug Class, One Day, Seven Years Of Signatures
On July 21 and 22, 2026, two independent wallet providers disclosed the same class of bug: nonce generation broken in a way that leaks private keys through public chain data. One drained 16.1M ADA. The other exposed every ZIL Ledger signature since 2019.
SecondFi Left The Secret Out Of The EdDSA Nonce. Every ADA Signature It Ever Published Handed The Private Key To Any Chain Observer. 16.1M ADA Gone
SecondFi's Cardano wallet client derived its Ed25519 signature nonce from only the public transaction hash, omitting the secret half RFC 8032 requires. Every signed transaction leaked the private key to any chain observer. 16.1M ADA drained from 374 wallets over four events.
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