A SingularityNET exploit initially involving 8.72 million FET tokens expanded significantly when researchers discovered the same attacker group was linked to 260 million AGIX and 53.8 million WMTx illegally minted tokens, totaling approximately 2.3 billion across multiple tokens valued at $16.77 million in Ethereum assets. The vulnerability affected SingularityNET and an Ethereum-Cardano bridge rather than direct smart contract attacks.