Definition ∞ A reentrancy vector identifies the specific pathway or sequence of operations an attacker uses to exploit a reentrancy vulnerability in a smart contract. This vector involves carefully crafted external calls that repeatedly invoke a vulnerable function before its internal state can be properly updated. Understanding these vectors is crucial for both attackers seeking to exploit flaws and developers aiming to secure their decentralized applications. It outlines the method of attack.
Context ∞ Analyzing reentrancy vectors is a fundamental aspect of smart contract security research and incident response in the crypto space. A key discussion involves identifying common reentrancy patterns and developing automated tools for their detection during security audits. Future efforts will focus on proactive vulnerability scanning and the creation of more resilient contract architectures to eliminate these attack pathways.
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