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Smart contracts contain many built-in security features, such as non-immutability once being deployed and non-involvement of third parties for contract execution. These features reduce security risks and enhance users’ trust towards smart contracts. However, smart contract security issues still persist, resulting in huge financial losses. Contract publishers cannot fully cover contract vulnerabilities through contract version updating. These security issues affect further development of blockchain technologies. So far, there are many related studies focusing on smart contract security issues and tend to discuss from a particular perspective (e.g., development cycle, vulnerability attack methods, security detection tools, etc.). However, smart contract security is a complicated issue that needs to be explored from a multi-dimensional perspective. In this paper, we explore smart contract security from the perspectives of …