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Since DeFi's emergence, the quality and security of on-chain data have been paramount concerns for developers, particularly regarding oracles—the critical bridges between on-chain and off-chain data that are often targeted by attackers. This article explores oracle use cases, common attack patterns, and prevention strategies for oracle manipulation. It provides practical guidance for developers on secure oracle integration while explaining their vital role in the blockchain ecosystem. Through analysis of recent incidents like UwU Lend and Banana Gun, we highlight how data reliability fundamentally shapes DeFi ecosystem stability.

This article takes stock of the DeFi projects in the Stacks ecosystem.

This article introduces how Stacks brings smart contracts to the Bitcoin blockchain and discusses the investment value of the STX token. Stacks achieves symbiosis with Bitcoin through the POX consensus mechanism, where miners earn STX rewards by producing blocks, and holders earn BTC rewards by participating in Stacking. Stacks also implements the sBTC mechanism, allowing smart contracts to read Bitcoin state and settle transactions on the Bitcoin chain. With a first-mover advantage, Stacks' ecosystem covers areas such as wallets, NFTs, DEX, DeFi, etc., and STX, as the native token, holds long-term investment value. With the development of the Bitcoin L2 track, the Stacks ecosystem is poised for significant growth, demonstrating enormous potential.

Recently, scams in the cryptocurrency space have become rampant, leading to losses of 4.6 billion dollars in 2023 and 500 million dollars already lost in early 2024. Common problems include vulnerabilities in DeFi protocols (like flash loan attacks and oracle manipulation), phishing websites, and fake airdrops. To protect yourself, enhance your security awareness, regularly check and revoke unknown authorizations, use cold wallets for most of your assets, and avoid clicking on unknown links or downloading unfamiliar plugins.

Since its inception, VINE (Vine) has quickly gained prominence in the cryptocurrency market with its nostalgic sentiment and the influence of Musk. Just 3 hours after its launch, its market value exceeded 42 million US dollars, making it the focus of the market's attention. As a meme coin with a strong nostalgic appeal, it carries people's fond memories of the Vine short video platform and adds a unique touch to the cryptocurrency market.