Drainers steal crypto with one click — here's how it works and how to protect yourself

Drainer is a malicious contract that activates while you sign a regular transaction. It looks legitimate but hides a catch.

Usually disguised as:

• “Approve without limits” — full access to your tokens
• “Allow transfer” - steals tokens unnoticed
• “Check Wallet” - a counterfeit with a malicious call

One signature = all your crypto in their pocket. Cannot be canceled.

What not to do:

• Do not sign if you do not understand what you are signing
• Do not click on random links — only official sources of the project
• Do not miss the transaction verification — check every time

How to protect yourself:

• Revoke.cash — revocation of old approvals
• Wallet Guard — an extension for blocking drainers
• Hardware wallet (Ledger, Trezor)
• Separate wallets - one for farming, one for storage

Your signature is not just a click, it's the key to your wallet. Take it more seriously.