Definition ∞ Perpetual allowance risk refers to the security vulnerability where a user grants indefinite permission for a smart contract or third-party application to access and spend their digital assets. If the approved contract is later compromised or malicious, the attacker can drain funds from the user’s wallet without further authorization. This ongoing approval creates a persistent exposure to potential exploitation. Users should exercise caution when granting such permissions.
Context ∞ Perpetual allowance risk is a significant security concern within decentralized finance, often exploited in phishing attacks or through vulnerabilities in legitimate smart contracts. Users frequently grant these allowances for convenience, unaware of the long-term security implications. The digital asset community is actively developing tools and best practices to help users manage and revoke these permissions more effectively. Educating users on the dangers of broad, indefinite allowances remains a primary focus for enhancing wallet security.
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