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Revoke Wallet Permissions

How to Revoke Wallet Permissions on 5 Major Blockchain Networks

Posted by admin May 23, 2025

In the fast-paced world of decentralized finance (DeFi), users frequently connect their wallets to decentralized applications (dApps) and grant permissions to access or transfer tokens. These permissions—called token approvals—are often necessary to interact with smart contracts. However, they can become a serious vulnerability if left unchecked, especially after you’re done using a particular dApp.

Malicious actors can exploit open permissions to drain tokens from wallets without your consent. To avoid this, it’s crucial to periodically review and revoke outdated or unnecessary approvals. Here’s a breakdown of how to do this safely on five of the most widely used blockchain networks.

Ethereum: Use Revoke.cash to Monitor and Revoke Token Approvals

Ethereum is the backbone of DeFi, hosting thousands of smart contracts and dApps. With great power comes greater risk—every approval you grant might be exploited if a dApp is compromised.

  • How to Revoke:
    Visit Revoke.cash for Ethereum. This tool allows you to check all token permissions associated with your wallet.
  • Steps:
    1. Connect your wallet to Revoke.cash.
    2. Review the list of approved smart contracts.
    3. Revoke any that are no longer in use or look suspicious.
    4. Confirm the transaction (note: a small gas fee is required).

Stay secure by routinely checking your Ethereum wallet permissions, especially after interacting with new DeFi platforms.

BNB Chain (Binance Smart Chain): Easily Revoke Permissions with Revoke.cash

BNB Chain, formerly Binance Smart Chain, is a popular alternative to Ethereum due to its low fees and fast transactions. But these benefits also attract phishing scams and shady dApps that prey on token permissions.

  • How to Revoke:
    Head to Revoke.cash for BNB Chain.
  • Steps:
    1. Connect your wallet on the BNB Chain network.
    2. Review token allowances given to smart contracts.
    3. Revoke any permissions you don’t recognize or no longer use.

Routine cleanup is essential—especially with how quickly new projects launch (and fail) on BNB Chain.

Polygon: Low Fees, High Risk if Permissions Are Ignored

Polygon is Ethereum-compatible and known for its scalability and near-zero gas fees. These same qualities make it popular among dApps—and scammers. Token approvals on Polygon are often forgotten because transactions are so cheap and frequent.

  • How to Revoke:
    Use Revoke.cash for Polygon.
  • Steps:
    1. Open the site and connect your wallet.
    2. Switch to the Polygon network.
    3. Identify old or unsafe token approvals.
    4. Revoke them with a minimal gas fee.

Be proactive, not reactive. Don’t let a small convenience today become a major loss tomorrow.

Solana: Use Solana Revoker to Disconnect Dangerous dApps

Solana works differently from EVM chains. It doesn’t use token allowances the same way, but it does allow dApps to maintain connections and access your wallet.

  • How to Revoke:
    Go to Solana Revoker, a purpose-built tool for managing dApp access.
  • Steps:
    1. Connect your Solana wallet.
    2. View the list of connected dApps.
    3. Disconnect any unfamiliar or outdated permissions.

In Solana’s ecosystem, revoking access to connected apps is your best defense against future compromises.

Avalanche: EVM-Compatible and Just as Vulnerable to Open Approvals

Avalanche’s C-Chain is compatible with Ethereum tools and wallets, meaning token approvals function similarly—and must be managed just as carefully.

  • How to Revoke:
    Visit Revoke.cash for Avalanche.
  • Steps:
    1. Connect your wallet and switch to Avalanche network.
    2. Examine token permissions granted to dApps.
    3. Revoke unused or suspicious ones as needed.

Even if you only use Avalanche occasionally, a forgotten approval can still be a target. Always clean up after using a new protocol.

Final Thoughts: Stay Vigilant, Stay in Control

Crypto security is your personal responsibility. Token approvals might seem like a small detail, but they represent a critical attack surface. Every time you approve a dApp, you potentially leave the door open for abuse. Fortunately, revoking permissions is quick, easy, and low-cost—especially compared to the cost of being hacked.

Set a reminder to review your wallet permissions every month, especially if you’re exploring new DeFi projects or using multiple blockchains. By regularly revoking unused token approvals, you take a strong step toward protecting your digital assets.