Solana DeFi Shaken: Step Finance Suffers $30M Treasury Breach

On February 1, 2026, the Solana ecosystem was rocked by a sophisticated attack on Step Finance, one of its most prominent DeFi dashboards and data providers.

During Asian Pacific trading hours, an unidentified attacker successfully compromised multiple treasury and fee-collection wallets, leading to the theft of approximately 261,854 SOL, valued at roughly $30 million.

The anatomy of the attack

Blockchain security firm CertiK flagged the anomaly early Sunday morning, noting that the stolen SOL had been unstaked after authorization was transferred to a fresh wallet address. Step Finance quickly issued an emergency disclosure, confirming that "several treasury and fee wallets were compromised." Critically, the team specified that the breach was facilitated through a "well-known attack vector," a statement that has sparked intense debate within the developer community.

Market reaction & controversy

The impact on the platform’s native token, STEP, was catastrophic, with its value plummeting over 90% in less than 24 hours as panic-selling took hold. While the Step Finance team maintains that user-deposited funds in liquidity pools remain safe, the nature of the breach — targeting direct wallet access rather than smart contract vulnerabilities — has led some analysts to question whether this was a security failure or a potential "insider" event.

As the team works with cybersecurity professionals to trace the funds, the incident serves as a grim reminder that even established "blue-chip" protocols are not immune to private key mismanagement.

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