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Rug Pull

What is a Rug Pull & How to Avoid Them

Learn all about rug pulls, common warning signs, and due diligence tools to avoid them.

Useless Ethereum Token (UET) launched in 2017 as “the world’s first 100% honest Ethereum ICO.” After three days, the self-avowed “useless” token raised over $40,000, which the founder pledged to spend on electronics. Unfortunately, malicious token developers aren’t so open about their intentions and often walk away with millions in ill-gotten gains.

According to Chainalysis, scams involving fraudulent tokens (known as rug pulls) accounted for about 37% of all crypto scam revenue last year, totaling nearly $3 billion. The good news is that there are some common-sense steps that you can take to protect yourself.

Let’s look at what rug pulls are and how to avoid them.

Rug pulls accounted for more than a third of crypto scams last year, or about $3 billion in stolen funds.

What is a Rug Pull?

Rug pulls occur when fraudulent developers create a new crypto token, promote the token to increase its price, sell the bulk of their holdings, and then abandon the project. For example, the Squid Game Token (SQUID) experienced tremendous growth early on, but the smart contract’s code prevented many non-founders from selling their tokens.

Rug Pull
SQUID briefly rose sharply higher before moving to zero. Source: CoinMarketCap

Hard rug pulls occur when developers insert malicious code into their smart contracts. For example, the Squid Game Token made it impossible for many people to sell their stake after purchasing it. Most hard rug pulls are illegal because there’s an apparent malicious intent to steal funds from the onset – although prosecuting crypto crimes is a gray area that is hard to pursue.

On the other hand, soft rug pulls refer to developers that dump their crypto assets quickly. While heavy selling puts severe downward pressure on the token’s price and may be unethical, it may not be illegal in the same sense as hard rug pulls. After all, it’s much harder to demonstrate a token developer’s malicious intent.

3 Types of Rug Pulls

Most rug pulls are poorly built projects with malicious intent from the onset. In many cases, they’re slightly modified replicas of other cryptocurrencies designed to appear legitimate on the surface. However, the actual “rug pull” typically comes in a few different forms – and it’s critical to understand these to avoid becoming a victim.

The three most popular types of rug pulls include:

  1. Liquidity Stealing – Developers need liquidity pools to make it possible for investors to buy and sell tokens, creating an opportunity for theft. For instance, a developer may create a liquidity pool consisting of their newly minted token and ether, promising to lock up any ether for a defined period. Malicious developers can then steal the liquidity – or ether – from the pool, leaving the rest of the newly minted tokens worthless.
  2. Limited Selling – Developers can embed virtually any logic into smart contracts and tokens. In some cases, malicious developers insert code that makes it impossible for anyone else to sell newly minted tokens. As a result, the price rises sharply and attracts new victims before the founder decides to sell their stake, sending the value of the tokens to zero.
  3. Dumping – Dumping tokens isn’t always a scam, but when developers create tokens specifically to scam people, it becomes unethical at best and criminal at worst. For instance, malicious developers may invent a project that makes outlandish promises to send the token price higher before cashing out their significant stake, sending the cryptocurrency back to zero.

Rug Pull Warning Signs

The best way to avoid rug pulls is to be wary of the warning signs. While the “it’s too good to be true” test applies to every investment, there are several specific warning signs you can look out for to spot potential rug pulls and avoid becoming a victim. The key is taking the time to step back during a time of excitement to assess reality without FOMO.

Some of the most common warning signs include:

  • Lack of Leadership – Many fraudulent crypto projects have anonymous leaders for obvious reasons. While Bitcoin is an exception, you should look for well-regarded teams before investing in cryptocurrencies (although that’s no guarantee either).
  • Liquidity Issues – Low liquidity levels make it easy for malicious developers to manipulate prices. If there’s low trading volume or a low “total value locked” in a project, you may want to avoid investing in it due to the potential for a rug pull.
  • Uneven Distribution – Etherscan and other tools can show you the distribution of tokens. Most rug pulls involve the top ten wallets holding more than 20% of the token supply or a single wallet holding more than 5% of the token supply.
  • Quality Concerns – Projects with a lackluster website, grammatical errors in their whitepaper, or other quality issues should be a red flag. Scammers often don’t take the time to build high-quality materials since they’re in it for a quick win.

Due Diligence Tools

There are several tools and services that you can use to assess the risk of a rug pull. In conjunction with the warning signs above, you can significantly reduce the risk of becoming a victim. And in addition to these tools, you can use social media and monitor reputable crypto news websites to track the legitimacy of various projects.

The two most popular due diligence tools include:

  • Token Sniffer maintains a list of the latest malicious contracts, rug pulls and hacks while scanning contracts for known scams and computing helpful token metrics. When clicking on a token, the platform provides a swap, contract, holder, liquidity analysis, and a list of known vulnerabilities.
  • RugDoc provides ratings for different token projects on a spectrum and breaks down critical risk factors. In addition, the platform offers audits and KYC checks to vet projects on a deeper level, providing greater reassurance for lower-risk projects. There’s also a launch calendar where you can find upcoming token launches.

The Bottom Line

Rug pulls accounted for over a third of crypto scams last year, or about $3 billion in stolen funds. Fortunately, there are several warning signs that you can use to identify potential scams, along with tools that you can use as part of your due diligence process. By keeping these tips in mind, you can avoid becoming the next victim.

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Justin Kuepper