Definition ∞ Unlimited Spending refers to a theoretical vulnerability in a digital currency system where an attacker could repeatedly spend the same funds without detection or prevention. This fundamental problem, often termed the double-spend problem, would undermine the integrity and trustworthiness of any monetary system.
Context ∞ The prevention of unlimited spending is a core security feature of decentralized cryptocurrencies, addressed by robust consensus mechanisms like Proof of Work or Proof of Stake. News regarding network security or potential vulnerabilities often focuses on how effectively a blockchain protocol guards against this critical flaw.
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