Phishing Approvals: There May Be Risks Even Without a Transfer
You need to understand both signatures and approvals, not merely click Confirm.
In One Sentence
Some approvals allow a smart contract to transfer specific tokens within defined limits. A signature that appears free or harmless may still grant significant permissions.
Real-Life Analogy—and Its Limitations
It is like issuing a power of attorney with a limited scope. This analogy does not mean that every signature constitutes an approval; different message structures can have very different effects.
The Correct Concepts
Token approvals, on-chain transactions, and off-chain signatures are different actions. Revoking an approval only removes that specific permission; it cannot remedy a compromised private key or recover assets that have already been transferred.
Common Misconceptions
A padlock icon on a website only indicates that the connection uses HTTPS; it does not prove that the operator is trustworthy. A familiar brand name appearing in a wallet prompt is also no substitute for verifying the domain and the actual call being made.
What to Watch Out For
Decline the action if you do not understand what you are signing. Handle suspicious approvals using verified tools, checking the network and permissions individually. Avoid links from “recovery experts” who contact victims through unsolicited direct messages.
Mark it complete when you understand it.
Opening a lesson does not complete it automatically. You can change its status at any time.