A rug pull is a type of cryptocurrency scam where the developers of a project suddenly abandon it and take all the invested funds with them. The term comes from the expression of pulling the rug out from under someone, leaving investors with worthless tokens.
Rug pulls are most common in DeFi and new token launches. They typically follow a pattern:
- Hype phase — developers create a token, build a flashy website, and promote it aggressively on social media
- Liquidity attraction — investors buy in, and the price rises as more money flows into the project
- The pull — developers drain the liquidity pool or sell their massive token holdings, crashing the price to near zero
There are different types of rug pulls:
- Liquidity theft — creators remove all liquidity from a decentralized exchange pool
- Sell-off — developers dump large pre-mined or insider token allocations
- Hidden functions — malicious code in the smart contract prevents investors from selling their tokens
Warning signs of a potential rug pull include anonymous developers with no track record, unaudited smart contracts, locked selling mechanisms, unrealistic promised returns, and an overly aggressive marketing campaign.
To protect yourself, always research a project's team and whitepaper, verify that smart contracts have been audited, check the tokenomics for suspicious allocations, and be especially cautious with memecoins and newly launched tokens. If something sounds too good to be true, it probably is.