Definition ∞ Unlimited token access denotes a smart contract permission that grants another address the capability to spend an indefinite quantity of a user’s specific tokens without requiring subsequent individual approvals for each transaction. While beneficial for decentralized applications necessitating frequent interactions, it also poses a significant security hazard if the approved contract becomes compromised. This permission can result in the complete draining of a user’s token holdings.
Context ∞ Unlimited token access is a frequent topic in cryptocurrency security discussions, often appearing in news reports about wallet drains and decentralized application (dApp) exploits. Users are commonly tricked into granting this broad permission to malicious contracts, leading to asset theft. The ongoing emphasis is on educating users to grant specific, limited approvals where feasible and to regularly review and revoke unnecessary permissions.