Definition ∞ Protocol invariant failure describes a critical error where a fundamental property a blockchain protocol is designed to always maintain is violated. Invariants are rules that must hold true for the system to function correctly. A failure to uphold these invariants indicates a severe bug or exploit. This represents a breakdown in the core logic of the protocol.
Context ∞ Protocol invariant failures are frequently analyzed in post-mortem reports of major blockchain exploits. The discussion in crypto news emphasizes the critical need for rigorous formal verification and continuous monitoring. Ensuring the integrity of these fundamental rules is paramount for the long-term security of decentralized applications.
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