imtoken will never ask for your seed phrase, private key or verification code. Always review the address, network and request details before transferring, signing or approving.
Web3 & DApps

Web3 & DApps

Learn a safer flow for DApp connections, signature requests, token approvals and smart contract interactions.

Learn a safer flow for DApp connections, signature requests, token approvals and smart contract interactions. This guide focuses on verifiable actions, clear permission boundaries and practical checks rather than promotional claims.

Network context

Know which chain records the state.

Verifiable data

Use hashes, blocks and contract addresses.

Action boundary

Understand what a signature can change.

On this page

Connecting does not approve everything

In practical use, connecting does not approve everything often combines information shown by the wallet with information recorded by the blockchain. The wallet can display balances and prepare requests, but the relevant network determines transaction execution and final state. When something looks unexpected in Web3 & DApps, compare the selected network, contract address, transaction hash and confirmation status instead of relying on a single interface message.

When the result is different from what you expected, start with verifiable data instead of repeatedly resubmitting the same action. Save the transaction hash, confirm the network, and inspect the explorer record for execution status, recipient and contract details. This helps separate a pending transaction, an interface delay, a network mismatch and an application-level issue.

Common categories of signature requests

A reliable way to approach common categories of signature requests is to turn it into a sequence of checks. For Web3 & DApps, verify the account and network first, then inspect the recipient, amount, contract or permission scope, and finally confirm that the resulting transaction is visible on-chain. Keeping each step verifiable makes troubleshooting easier and helps distinguish network delay from an incorrect network or a different contract outcome.

Security remains part of every workflow. Seed phrases and private keys should stay under the user's control, and they should never be sent to a website, DApp or person claiming to provide support. Treat every signature and approval as a separate decision, review permissions that are no longer needed, and use extra caution on shared devices or public networks.

Rule of thumb: connecting a wallet does not mean every later signature or approval should be accepted. Review each request independently.

What token approvals authorize

Understanding what token approvals authorize is less about memorizing terminology and more about knowing what it changes in a real wallet workflow. In Web3 & DApps, the useful mental model is to keep the account, network, asset and on-chain state together. Confirm the environment first, identify the destination or contract second, and only then approve an action that can move assets or change permissions. This reduces mistakes caused by similar addresses, familiar-looking interfaces or networks with related names.

Any action that can change assets, permissions or account state deserves a final review before approval. Re-read the destination address, network, amount, gas information, contract and approval target rather than assuming a familiar screen is safe. Blockchain transactions generally cannot be reversed by a wallet alone, and third-party DApps or smart contracts can introduce risks that are outside the wallet's control.

Checks before contract interaction

In practical use, checks before contract interaction often combines information shown by the wallet with information recorded by the blockchain. The wallet can display balances and prepare requests, but the relevant network determines transaction execution and final state. When something looks unexpected in Web3 & DApps, compare the selected network, contract address, transaction hash and confirmation status instead of relying on a single interface message.

When the result is different from what you expected, start with verifiable data instead of repeatedly resubmitting the same action. Save the transaction hash, confirm the network, and inspect the explorer record for execution status, recipient and contract details. This helps separate a pending transaction, an interface delay, a network mismatch and an application-level issue.

Practical checklist

✓ Confirm the active network
✓ Re-read the destination or contract
✓ Check the amount or permission scope
✓ Keep the transaction hash
✓ Avoid exposing recovery secrets
✓ Review unused approvals

Review permissions after use

A reliable way to approach review permissions after use is to turn it into a sequence of checks. For Web3 & DApps, verify the account and network first, then inspect the recipient, amount, contract or permission scope, and finally confirm that the resulting transaction is visible on-chain. Keeping each step verifiable makes troubleshooting easier and helps distinguish network delay from an incorrect network or a different contract outcome.

Security remains part of every workflow. Seed phrases and private keys should stay under the user's control, and they should never be sent to a website, DApp or person claiming to provide support. Treat every signature and approval as a separate decision, review permissions that are no longer needed, and use extra caution on shared devices or public networks.

Important reminder

You are responsible for safeguarding your seed phrase and private key. imtoken will never ask for your seed phrase, private key or verification code. Check the address, network and amount before transferring. On-chain transactions generally cannot be reversed by a wallet alone, and third-party DApps, smart contracts and digital assets carry independent risks.