Rabby Wallet Extension: Transaction Simulation Feature—Why It’s Technically Different From Approval Prevention

A user connects their wallet to a decentralized exchange, intends to swap 10 tokens for another, and approves the transaction. The signature goes through. Moments later, the wallet has lost the 10 tokens but received nothing in return. The exploit succeeded because the approval was valid—the wallet owner did authorize a transaction—but what was actually […]