Attackers stole over $1 million in user funds from the new Solana bank Avici

Solana's new bank Avici is facing ongoing attacks, with attackers having stolen over $1 million from users. The attackers' wallet holds 10,005.03 SOL (approximately $1.07 million) and about $11,600 in USDC and USDT. The attack method involves first calling the SubmitSignatures of the Avici authorization program, then calling the AddCollateralAdmin of the collateral program, and finally executing WithdrawCollateralAsset to withdraw the balance. Both of Avici's programs are upgradable and share the same standard Solana account instead of multi-signature upgrade permissions.

Avici confirmed the incident 1 hour and 53 minutes after the first theft transaction, stating, "We are aware of the issue affecting card balance withdrawals and are working directly with all relevant partners to resolve it." Prior to this, users had reported stolen balances on social media. A real-time tracker established by anonymous on-chain analyst STACC recorded 125 different sending accounts, with transfer amounts ranging from approximately 9 USDC to over 26,000 USDT.

As a result, the AVICI token fell 49.4% in 24 hours to $0.2175, with a market cap of approximately $2.84 million, hitting an all-time low. Avici raised funds through MetaDAO in October 2025, with an original cap of $3.5 million, but the final committed amount reached $34.2 million, and the team refunded 89.8% of the committed USDC.