The Certified Crypto Market blog

Crypto, explained.
Scams, exposed.

Plain-English guides to protect your money: how to research a project, spot a scam, store coins safely and understand every major cryptocurrency.

4 articles for “token approvals” · clear

Wallet Permissions and Connected Sites

What wallet connected sites can and cannot do, how connections differ from token approvals and signatures, and how to review and remove permissions safely.

Oct 10, 2026 · 4 min read

How to Revoke Token Approvals on Ethereum and Other EVM Chains

Learn how to revoke approvals on Ethereum and other EVM chains step by step, which approvals are risky, what revoking costs and what it cannot undo.

Oct 3, 2026 · 4 min read

Wallet Drainers: How Malicious Approvals Steal Your Crypto

A wallet drainer tricks you into signing approvals that let attackers empty your wallet. Learn how drainers work, the warning signs and how to protect yourself.

Oct 3, 2026 · 5 min read

Fake Airdrops: How Scammers Use Free Tokens to Drain Wallets

A fake airdrop scam lures you with free tokens, then tricks you into signing a wallet-draining approval. Learn the warning signs and how to stay safe.