A vulnerability in a deprecated automated market maker program allowed an attacker to drain approximately $1.34 million from five inactive liquidity pools on Raydium, a decentralized exchange built on Solana. Because the affected AMM program had already been retired from active use, the exploit targeted legacy infrastructure rather than Raydium's current systems. The protocol confirmed the breach and announced that its treasury would cover all losses sustained by impacted users, signaling a commitment to making affected liquidity providers whole. The incident highlights ongoing risks posed by unmaintained or deprecated smart contracts, which can retain user funds long after they are removed from active service. Raydium has not yet disclosed the specific technical mechanism exploited or whether any funds have been recovered.
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