Definition ∞ Malicious Clients refer to participants within a blockchain network who attempt to disrupt its operation, compromise its security, or gain unfair advantage through dishonest actions. These clients may try to submit invalid transactions, propagate false information, or coordinate attacks on consensus mechanisms. Their actions pose a direct threat to the integrity and reliability of the distributed ledger. Network protocols are designed to detect and mitigate such behavior.
Context ∞ The threat of malicious clients is a constant concern in blockchain security, often discussed in news regarding network vulnerabilities and defense strategies. Protocol upgrades frequently aim to enhance resilience against various attack vectors, including those perpetrated by malicious actors. Understanding these risks is essential for assessing the security posture of any decentralized system.
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