As for decentralized exchanges, they’re pretty simple. Here’s a brief explanation for everybody who can’t open the original link: DEXs aka decentralized exchanges are blockchain-based platforms similar to peer-to-peer systems. They don’t have a single central server. Instead, they use a network of nodes and private wallets of users between which transactions are made. Means, DEXs don’t store money, they just help users to match their buy/sell orders. So hackers can’t steal anything from the website.