*In the past few years, blockchain platforms (such as ETH and EOS) have introduced a new computing model to the world: DApps (decentralized applications). * ** Unlike traditional applications on smartphones, DApps are not controlled and run by a single entity or organization. These applications (also known as DApps) bring advantages such as censorship resistance, trustlessness, and reliability. Since blockchain-based DApps are still few and still between centralization and decentralization, interacting with them can be overwhelming at first. The purpose of this article is to answer the most common questions related to DApps from three perspectives (legality, privacy, and digital asset security). Legality of DApps Before the introduction of blockchain, decentralized applications existed in the form of peer-to-peer platforms. However, after the popularity of Bitcoin and other cryptocurrencies, ambitious developers quickly realized that there is still a lot of potential f...