The unauthorized transactions from Mercado Bitcoin on November 2, 2026 were plain transfers signed as authorized transactions rather than a smart contract exploit, according to Hypernative

Thefts and exploits that drain funds from exchanges, protocols and bridges, with their post-mortems, laundering routes and recoveries.

Programs stored on a blockchain that execute automatically when conditions are met, forming the building blocks of DeFi, NFTs, and most on-chain applications.