BlockSec Phalcon (blockchain security platform) detects multi-chain contract attacks exceeding $17 million

According to BlockSec Phalcon, contracts by two creators on Ethereum, Arbitrum (Ethereum layer-2 network), Base (Ethereum layer-2 network), and BSC (BNB Smart Chain) suffered losses after arbitrary calls (unrestricted external function calls) enabled token-approval drains (permissions to spend tokens).