What Is a “Rug Pull” and How Is It Related to Token Approval?
A "rug pull" is a malicious maneuver where developers suddenly drain all the liquidity from a DEX pool, leaving investors with worthless tokens. It is related to token approval because, in some advanced scams, the malicious contract might trick users into granting an infinite token allowance.
This allows the scammers to drain the users' approved tokens in addition to the liquidity they steal.