What Is the Difference between Transfer and Transferfrom ?

The transfer function sends tokens directly from the caller's address to a recipient. It requires the caller to own the tokens.

The transferFrom function, however, allows a third-party address (like a DEX contract) to send tokens from a different address (the token owner) to a recipient. This requires the token owner to have first granted an allowance to the third party using the approve function.

Why Does a Transparent Proxy Need to Check the Caller’s Address?
What Is Atomic Settlement and Why Is It Desirable for Crypto Derivatives?
How Is the Call Function in Solidity Related to Reentrancy?
What Security Risks Are Associated with the Allowance Mechanism?
How Does the Approve Function Enable Decentralized Exchanges (DEXs)?
What Is a Credit Default Swap (CDS) and How Does It Relate to This Risk?
What Are the Risks Associated with Using a Third-Party Liquidity Locker Service?
What Is a ‘First-Party’ Oracle and How Does Its Security Model Differ from a ‘Third-Party’ Oracle?

Glossar