Front-running attack in decentralized finance in the metaverse: A systematic review

The Metaverse is a developing mirror of the real world that promises to revolutionize socializing, business, and digital asset connections. Such technology will change the physical world and its environment. Decentralized Finance (DeFi) will completely transform the global financial system. Recent years have seen DeFi transform the financial industry. Since DeFi expanded, banking, insurance, and investing have changed significantly. The decentralized finance sector is growing rapidly, showing that digital currencies and platforms could replace the old financial system. It eliminates expensive intermediaries, lowers transaction costs, and increases financial services access for all, regardless of location or income. Decentralization could provide a risk-free and efficient solution for Metaverse's financial ecosystem, but it has drawbacks. Before implementing financial decentralization, security risks were the main concern. The review paper discusses DeFi's main role in the Metaverse financial ecosystem and security concerns. Front-running attacks are one of the biggest security risks in DeFi, which could cost investors a lot of funds as well as damage the ecosystem.