What is a rug pull, and how to spot one before it happens

The most common way people lose money in crypto — and the signs that tend to show up first.

A "rug pull" is when the people behind a project take the money and disappear, leaving a token that's suddenly worthless. The name comes from "pulling the rug out" — one moment there's a working-looking project with a rising price, the next the liquidity is gone and there's no one to sell to. It's not always a dramatic exit; sometimes it's slow, with the team quietly selling their own allocation into every bit of buying interest until nothing's left.

The signs that tend to show up first:

• The team can take the liquidity out. If the pool of money that lets people trade the token isn't locked, the team can withdraw it whenever they like. (See our guide on what "liquidity locked" actually means.)
• A wallet can mint unlimited new tokens. If the contract lets an admin create more supply, they can flood the market and cash out while you hold the dilution.
• Ownership is concentrated. A handful of wallets holding most of the supply means a handful of people can crash the price at will — a block explorer's "holders" tab shows this in a minute.
• Anonymous team plus big promises plus urgency. None of these alone is damning, but together — no accountable people, guaranteed returns, and "buy now before it's too late" — they're the classic setup.

Why this matters to you specifically: almost every rug pull is visible before it happens, in the contract permissions and the holder distribution — not in the marketing. You don't need to predict intent; you need to check whether the mechanism to rug even exists. If it can't happen technically, it usually won't.