Your wallet pops up a request saying it needs you to authorize access to multiple chains—your first reaction might be "Why does it need so many chains? I'm not even using them," and then you click reject. That instinct is correct. You should stick with it.
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What you are rejecting is not a "connection." It is permission for cross-chain operations. These two things are fundamentally different.
Connection vs Permission: What You Are Actually Blocking
Let's be clear about one thing: the popup you see is not the DApp trying to read your balances on other chains. According to WalletConnect's protocol design, a DApp can only see your address information on the chain where you initiated the connection request.
So what does "access multiple chains" listed in the popup mean? It is asking whether you can authorize this smart contract to have permission to initiate transactions on your behalf on other chains where you have not yet actively operated. This is completely different from "taking a look."
Why You Should Not Hand Out a "Cross-Chain Pass" Casually
It comes down to two points.
First, your risk exposure is amplified. If you only authorize Ethereum mainnet, a malicious contract can only touch your assets on mainnet at most. If you authorize the five chains it lists, it can act on all five chains simultaneously. MetaMask's product logic has a clear rule: every time a DApp switches chains, it will pop up a separate window for you to approve. It is designed this way to force you to reconfirm every time you cross chains, rather than giving a one-time "universal pass."
Second, "authorize once, use everywhere" is counterintuitive on-chain. If you give a contract unlimited allowance on Ethereum, it cannot directly use that allowance to take your money on Polygon—because the states of the two chains are not connected, and the contract addresses are also different. But when a DApp pops up this request, it essentially wants you to execute this authorization operation once on all the chains it lists. So you are not "giving one permission." You are "simultaneously giving multiple permissions on multiple chains."
When Is It Worth Clicking Approve
Case A: You actually need to perform cross-chain operations in the same DApp
For example, you are doing a cross-chain swap on Uniswap, from Ethereum to Arbitrum. In this case, the DApp needs you to approve transactions on both chains separately. It is genuinely doing cross-chain business. In this situation, you can approve the popup.
Case B: You are using a one-stop cross-chain bridge or aggregator
Protocols like Across and Li.Fi have multi-chain execution as their core business logic. You can approve, but after approving, remember to go into your wallet's "Connected Sites" list and minimize the session permissions. In WalletConnect v2's design, session permissions can be adjusted at a fine-grained level.
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Clear Signals to Reject
If any of the following situations occur, click reject without hesitation:
- You are just doing a simple swap on a single chain, but the popup asks for authorization on more than 3 chains that are completely unrelated to your operation
- The chains listed in the popup are ones where you have never stored any assets
- You simply cannot understand why this DApp needs cross-chain access
Risk reminder: Rejecting does not affect your normal operations on the current chain. The DApp just cannot obtain cross-chain permissions. Your connection and transactions on the chain it is currently on will continue as usual.
How to verify after completing the operation: Find this DApp in your wallet's "Connected Sites" list, click in and look at "Permissions" or "Authorization Scope." If it only shows the chain you are currently using (for example, Ethereum Mainnet) with no other chain entries, it means you did not grant extra permissions. If chains you did not approve appear in the list but the session still works normally—that means the popup was never necessary in the first place, and you were right to reject it.
