Your data isn't really yours on social media—until now. DIDs (Decentralized Identifiers) let you own a digital identity stored on blockchain instead of Facebook/Google's servers. Think of it like this: instead of platforms holding your info and selling it to advertisers, you keep a master key. You decide who sees what, when they see it, and they can't secretly modify your data without permission. It's basically digital self-sovereignty. For anyone tired of being the product, DIDs are a game-changer for privacy.