Popular DeFi discussions from September 23, 2026 cover Bitcoin Layer 2 solutions like Stacks, a16z and DeFi Education Fund's SEC proposal for decentralized exchange regulation, Treasury v2 launch, and partnership announcements between Veda Labs, Firelight, and Sentora. Notable activity includes testing of looping strategies on Zest Protocol and collateral integration for PEAQ token.
A security researcher flagged multiple DeFi applications with critical vulnerabilities, including direct fund theft risks in DeFiSaver and 1inch Wallet, a liquidity bridge exploit in Rootstock, and a double spending vulnerability in Stacks. The post warns that exploits may be released imminently.