AVICI EXPLOIT: 1,685 Users Affected, Full Reimbursement Promised A critical vulnerability in @avici Solana card contract has resulted in significant losses for thousands of users. Here's what you need to know: An authorization flaw in the smart contract's signature verification system allowed an attacker to gain admin privileges. The exploit affected 1,685 user accounts with a combined balance of $500,859.22. The attacker systematically drained funds, with a median loss of $24 per account and the largest single withdrawal reaching $5,268. The solana:BANKJmvhT8tiJRsBSS1n2HryMBPvT5Ze4HU95DUAmeta token experienced a sharp 28% decline, currently trading at $0.3086 on CoinMarketCap. However, users' self-custodial Solana and EVM wallets remained secure and were not affected by the breach. Avici has confirmed that all affected card balances will be fully reimbursed. The vulnerable contract has already been upgraded, and no unauthorized transactions have been recorded since the fix was implemented. The protocol team has reported the incident to the FBI and continues collaborating with security partners. While the attack resulted in significant losses, Avici's swift response and commitment to full reimbursement demonstrate responsible crisis management. The incident highlights the ongoing importance of rigorous smart contract audits in the #DeFi ecosystem.