In simple terms — In a rug pull, the people controlling a project “pull the rug out”: they raise money or attract buyers, then use their control to remove liquidity or shift value away from everyone else.
The term covers several forms of abusive exit. Not every token collapse is a rug pull: falling prices, technical failure, and fraud require different evidence. The central element is the intentional use of control, access, or asymmetric information to harm participants.
Three recurring mechanisms
In a liquidity pull, the team removes from the pool the assets that make the token tradable, leaving users with a token that is hard or impossible to sell. In a dump, creators or insiders sell a dominant share after promoting demand, transferring the loss to buyers. In a technical rug, hidden privileges allow someone to mint tokens, block sales, change fees, or transfer funds.
These mechanisms can overlap. A honeypot may stop other people from exiting while controlled addresses sell. “Locked” liquidity reduces one specific risk only when the lock's contract, duration, and amount can be verified. It does not remove minting powers, upgradeable proxies, or supply concentration.
Signals to verify, not automatic labels
Check the team's identity and history when available, token distribution and vesting, contract powers, audits with a clear scope, liquidity depth, and who owns the LP positions. Guaranteed-return claims, urgency, copied documentation, and dependence on referrals increase risk, but no single signal proves fraud.
An audit does not certify the team's future behavior or contracts outside its scope. Verify original addresses through independent sources; do not rely only on a link supplied by someone promoting the token. If you suspect fraud, preserve URLs, messages, addresses, and transaction hashes, and avoid paying unverified “recovery services.” Confirmed on-chain transactions are not automatically reversed.
Sources
- ESMA — Crypto fraud and scams factsheet — Describes rug pulls among crypto frauds and outlines their main warning signs.
- SEC — Complaint, Eric Zhu — A primary document on liquidity withdrawal, token sales, and conduct alleged to constitute a rug pull.