A D'CENT App Wallet exploit affecting XRP and other cryptocurrencies resulted in ~12.4 million XRP stolen from 7,393 wallets starting September 15, 2026, with attackers using compromised signing keys rather than exploiting the XRP Ledger protocol itself. Separately, Zcash has grown to 1.49% of Bitcoin's market cap and is being discussed as a privacy-focused alternative, supported by institutional adoption like Grayscale's ETF.