Cryptocurrency

Separating a Wallet From a DApp Is Not Enough: How to Stop Token Approvals in Practice

By Walid Mograbi · 2026-05-26 · 2 min read

Disconnecting from a DApp can stop the app from showing your address, but it does not remove the spending rights you previously gave a contract. Only explicit on-chain revocation (or other direct approval reset actions) can end that access.

Core lesson

Disconnecting your wallet from a DApp is often only a UI-level action. It may hide your address from that interface, but it does not remove the on-chain approvals already granted.

Why this confusion is risky

Many users assume that once disconnected, the contract can no longer access their assets. In reality, if an approval is still active, a smart contract can still try to spend within its allowance permissions.

Two separate layers

• **Disconnect** = stop the current app connection in the interface.
• **Approval / Allowance** = blockchain permission recorded on-chain.

These are not the same control, and mixing them is a common cause of loss.

What this means for your funds

If a previously approved contract is compromised, abused, or reused, balances may still be drained even though you are no longer actively using that DApp. This is why approvals require regular security hygiene.

Practical routine

Review your approvals on a regular schedule. Focus first on large allowances and contracts you no longer use, especially older or inactive ones, and remove unnecessary permissions before your next DeFi session.

Decrease allowance vs Revoke

Not every contract or flow supports a safe decrease of allowance. When reducing limits is unavailable, unclear, or potentially unsafe, **Revoke** is the stable baseline choice because it directly removes access.

Checklist before using a DApp

1) Confirm you are revoking the approval, not only disconnecting. 2) Remove unnecessary contracts from approvals before trading. 3) If lowering allowance is not clearly available, use Revoke as a direct cleanup action.

Warning to remember

Revoking approvals happens on-chain and may require network fees. Do not assume a clean disconnect also means no remaining spending rights.