A whitelisted contract is a type of smart contract that has been pre-approved to interact with a specific blockchain network or application. By being on a whitelist, the contract is granted permission to execute certain functions or access specific resources that other contracts may not be able to.This process is often used to enhance security and trust. It allows developers to limit interactions to only those contracts that have been vetted and deemed safe, reducing the risk of malicious activity. For instance, in decentralized finance (DeFi) platforms, only whitelisted contracts may be eligible for lending, borrowing, or trading assets.In the context of token sales, a project may create a whitelist of addresses allowed to participate in the sale. This ensures that only selected individuals or entities can purchase tokens, which can help prevent bot activity and excessive speculation.Overall, whitelisting adds a layer of control and security, promoting a safer environment for users and developers alike.