What is a rug pull and how do I avoid them in DeFi?

A rug pull is when a token's creators drain the liquidity pool (and often mint extra supply) after retail buyers have provided value. Two flavors:

• Hard rug: smart contract has a built-in backdoor (mint, blacklist, fee-on-transfer manipulation). Drain happens in one transaction.
• Soft rug: team simply stops developing, dumps their bag, and vanishes. Slower, but the result is identical.

Before buying any token, check: contract verification status (Etherscan/BscScan), liquidity lock status (Team.finance, Unicrypt), ownership renouncement, and audit reports from named firms. If the token's contract has owner-only mint or pause functions, treat it as high-risk by default.

Recovery from a rug pull is almost always impossible — the funds were extracted through legitimate-looking smart-contract calls, not a hack. Civil recovery requires identifying the team behind the project, which is rarely feasible for anonymous launches.