What token approvals do
A token approval gives a smart contract permission to spend a specific token from a wallet. This is common when using swaps, DeFi apps and bridges.
Why approvals can be risky
Some approvals are limited, while others may be broad or unlimited. If a contract is malicious or compromised, a risky approval can expose funds.
Basic safety habits
- Use trusted apps and check URLs carefully.
- Be cautious with unlimited approvals.
- Review and revoke old approvals when they are no longer needed.
- Use a separate wallet for higher-risk experiments.
- Never enter a seed phrase into a random website.
Why this belongs next to exchange comparisons
Many users start with centralized exchanges, then move funds into wallets. Understanding token approvals helps them avoid avoidable wallet mistakes after leaving an exchange.
Compare wallets or read the token approval glossary.