Approval Contracts are a common feature when interacting with DApps, granting third-party access to specific assets in your crypto wallet.

Typically, smart contracts default to an Unlimited setting, allowing users to grant platforms permission to spend tokens without a cap. For specific transactions, users can set the allowance to match the exact transaction amount. This Unlimited option reduces the frequency of granting permissions and eliminates additional fees for exceeding set authorization limits.

Benefits of Unlimited Approval

Users enjoy the convenience of a one-time allowance confirmation. This saves both time and gas fees, with the approval automatically extending to subsequent transactions.

Understanding the Risks of Unlimited Approval

Granting Unlimited approval exposes users to two primary risks: malicious projects and vulnerability exploits. These risks potentially allow phishing DApps and hackers to misuse approved tokens for various unauthorized activities.

To enhance user safety, CoolWallet introduces the feature to set limits on approval amounts during the contract signing process.

Reclaim Control: Revoking Unlimited Approvals and Permissions

Already granted Unlimited Approval? Regain control and secure your wallet by revoking these token approvals and permissions:

1. Access and Revoke: Navigate to CoolWallet's Web3 Browser and select “Revoke.Cash”.

2. Review Approvals: Connect your wallet to review current Approvals

3. Reset Approval Limit: Modify the approved amount and re-sign the Approval Contract. (Note: An on-chain fee is applicable for re-signing.)

最新文章

View all

The Strategic Bitcoin Reserve: Trump's Bitcoin Plan
  • by TeamProduct

美國比特幣戰略儲備:川普的比特幣計畫

立即了解川普在 2025 年最新發布的比特幣戰略儲備的內容是什麼,這項政策如何規範美國政府透過加密貨幣來改變美國財政政策。同時思考這項美國政府的比特幣戰略儲備政策對市場、政府監管和你的加密貨幣投資有什麼影響。

Read more

CoolWallet’s Enhanced Security: Stop Hacks Before They Happen
  • by TeamProduct

CoolWallet 強化安全防護:提前預防駭客攻擊

了解 CoolWallet 全新交易預覽功能與智能掃描(Smart Scan),幫助您在駭客攻擊發生前預防風險,全面提升加密資產安全性。

Read more

Core Blockchain & Core DAO: Unlocking Bitcoin's Power for the Next-Gen Blockchain
  • by TeamProduct

Core 區塊鏈與 Core DAO:用比特幣的力量,引領新世代

CoolWallet Pro 現已支援 Core 區塊鏈!您現在可以安心地將 Core 鏈上資產如 $CORE 等代幣存入,並輕鬆與 Core 生態系統互動。快來了解更多關於 Core 區塊鏈的小知識吧!

Read more