Proof-of-Stake Vulnerability

Definition ∞ A Proof-of-Stake vulnerability refers to a potential weakness or attack vector within a Proof-of-Stake consensus mechanism that could compromise the network’s security, integrity, or fairness. These vulnerabilities might include issues like long-range attacks, nothing-at-stake problems, or cartel formation among large stakers. Such flaws could permit malicious actors to manipulate transaction history or prevent legitimate transactions.
Context ∞ Proof-of-Stake vulnerability is a recurring subject in blockchain security research and crypto news, particularly as more protocols transition to or launch with this consensus method. Reports on theoretical attacks or real-world exploits directly influence developer efforts to harden protocols and impact the trust placed in Proof-of-Stake digital assets. The ongoing work to mitigate these risks is central to the advancement of Proof-of-Stake systems.