What Are Decentralized Apps (dApps)?

This report provides an overview of decentralized applications (dApps), how they operate on blockchains, their core properties (immutability, transparency, trustless execution, interoperability), common use cases (DeFi, NFTs, gaming, supply chain, social platforms), and the primary security strengths and challenges facing Web3 projects; it emphasizes common smart contract risks (reentrancy, access control flaws, oracle/frontend dependencies), the limitations of immutability, and recommends threat modeling, formal verification, and independent audits before deployment.