A rug pull is a scam in which the people behind a token or project remove its liquidity, sell their holdings or use the contract's own mechanics to leave users with assets they cannot sell or that are worth nothing. An exit scam is broader: the operator collects deposits or investments and then disappears.
What rug pulls and exit scams are
A rug pull is when the creators of a token or project suddenly withdraw the value that supports it and abandon the project, leaving holders with something worthless — the "rug" pulled from under them. An exit scam is the broader version: any scheme that collects users' money under a plausible promise and then shuts down and disappears with it. Both rely on building enough trust and deposits to make the eventual theft worthwhile, then betraying that trust in a single, irreversible move.
Hard rug pulls, soft rug pulls and exit scams
| Type | How it happens | Typical sign |
|---|---|---|
| Hard rug | The team drains the liquidity, or the contract blocks selling or lets insiders mint without limit | An abrupt price collapse, often with holders unable to sell |
| Soft rug | Insiders sell their holdings, stop development and fade away | Insiders keep selling while communication goes quiet |
| Exit scam | A platform or project collects deposits, then shuts down | Withdrawals blocked or endlessly delayed, then the operators disappear |
Hard rugs
The most brazen form is the hard rug, an abrupt and total theft. In a token, this often means the team removes the liquidity that lets people sell, so the price instantly collapses to nothing and holders cannot exit. Other hard rugs hide malicious code in a contract that lets creators mint unlimited new tokens and dump them, or block everyone but themselves from selling. Hard rugs are fast, deliberate, and usually planned from the start; the project existed only to reach the moment of theft.
Soft rugs
A soft rug is slower and easier to disguise as mere failure. Instead of one dramatic drain, the team quietly sells its own large holdings into the market, stops developing, goes silent on communication, and lets the project wither while they walk away with the proceeds. Because nothing obviously "breaks," soft rugs are harder to prove and easier to excuse as bad luck or lost interest. The result for holders is the same: a project abandoned by insiders who cashed out at their expense.
Exit scams beyond tokens
Exit scams are not limited to launching a token. Fraudulent yield platforms and lending schemes promise unrealistic returns, pay early users with later users' deposits in classic Ponzi fashion, and then vanish once inflows slow. Fake exchanges and investment apps let you deposit and even show fake profits, but quietly block or endlessly delay withdrawals until they close down. The common thread is a smooth, trustworthy front end designed to maximise deposits before the operators take everything and disappear.
Red flags and due diligence
Most of these scams share warning signs you can check in advance.
- An anonymous team with no verifiable track record
- Liquidity that is not locked, or that the pool's creator still controls
- A large share of the supply sitting in a few insiders' wallets
- A contract that lets the team mint tokens, block sales or change fees
- Promises of guaranteed or extraordinary returns
- No code audit, and little public documentation such as a website or white paper
- Aggressive marketing and pressure to deposit quickly
- Delays or blocks even on small withdrawals
Favour audited, transparent projects, test withdrawals early with small sums, and never commit more than you can afford to lose to anything unproven.
The bottom line
Rug pulls and exit scams are frauds of disappearance: hard rugs drain a project instantly, soft rugs abandon it slowly, and broader exit scams collect deposits through fake platforms before vanishing. They all depend on building trust to steal it, so your protection is disciplined skepticism — verify the team, insist on locked liquidity and audits, distrust guaranteed returns, and always confirm you can withdraw before you deposit more. In crypto, the ability to leave is worth checking before you ever arrive.
Frequently asked questions
What is the difference between a rug pull and a pump and dump?
In a pump and dump, organizers buy a thinly traded token cheaply, hype it to pull in buyers, then sell their holdings into the price rise they created, leaving late buyers with the losses. In a rug pull, the people behind the project take the value that supports it, by draining liquidity, dumping tokens they minted or quietly selling out, and abandon the project itself.
Can an audited project still rug pull?
Yes. An audit reviews the contract code and can catch functions that would let developers make off with investors' funds, but even audited code gets exploited, and much of the risk sits outside the code: how much of the supply insiders hold, whether liquidity stays locked and whether the team keeps building. A soft rug needs no malicious code at all.
Related reading
Other Bitbase articles on this topic:
- Can Cryptocurrency Be Hacked?
- What Is a Pump and Dump?
- Airdrop Scams and a Pre-Claim Safety Checklist
Disclaimer: This article is educational content from Bitbase Academy, provided for informational purposes only. It is not investment, trading, tax, or financial advice. Written as of October 2026; rely on the latest official information.
References
[1] Chainalysis, "Crypto Scams: 2021 Rug Pulls Put Revenues Near All-Time High" chainalysis.com
[2] Investopedia, "Rug pull and exit scam" investopedia.com
