Smart contract security refers to the measures and practices put in place to protect smart contracts from vulnerabilities, attacks, and exploits. Smart contracts are self-executing contracts with the terms of the agreement directly written into code. They run on blockchains, making them transparent and immutable, but this does not mean they are immune to risks.Common threats include coding errors, which can lead to unintended consequences, and vulnerabilities that attackers can exploit. For instance, flaws in the code may allow unauthorized access to funds or manipulation of contract logic.To ensure smart contract security, developers often conduct rigorous testing, audits, and code reviews before deployment. Ongoing monitoring and updates help address potential issues after the contract is live.Overall, a strong emphasis on security is crucial for maintaining trust and integrity in decentralized applications that rely on smart contracts. It protects users and investments from potential losses due to security breaches or technical failures.