Approval versus signing
Signing a transaction confirms one action. A token approval, often shown as an “Approve” transaction, can set an allowance for a particular smart contract. Read the wallet prompt to see the token, contract, and amount.
Review the scope carefully
Only approve contracts you understand and intend to use. Avoid unlimited allowances when a smaller amount is appropriate. A transaction can be technically valid while still granting a permission you did not mean to grant.
Keep your wallet credentials private
A legitimate app asks you to approve or sign within your own wallet. It never needs a seed phrase, private key, password, or remote access. If you no longer use an app, review and revoke unused approvals with a trusted wallet or explorer tool.
Ask a safety question →What an approval allows
Token approval is a permission given by a wallet to a smart contract. It can allow that contract to move a specified amount of a token under the contract’s rules. Approval is different from sending the token itself, so it deserves a separate review. The final wallet prompt should identify the contract and permission being requested.
How to reduce approval risk
- Use only a contract address you have independently verified.
- Review the requested amount and avoid an unnecessarily broad allowance when the application offers a narrower option.
- Revisit old approvals after you stop using an application and revoke or reduce them with a trusted wallet or permission-management tool.
- Never approve, reveal, or import a seed phrase or private key to solve an approval issue.
If a signature request is unclear, stop and verify it before signing. A legitimate resource service needs a public address for delegation, not control of the wallet.
Technical sources and verification
These references explain the protocol. TronZero package prices are service terms, not TRON network fees. Recheck the wallet estimate before signing.