Recently, I've seen many newcomers stumbling in the crypto space, which made me realize that my understanding of scams like rug pulls is still insufficient. Instead of passively waiting to be victimized, it's better to actively learn about these tricks—after all, knowing yourself and your enemy allows you to survive longer.

Let's first talk about what a rug pull actually is. Simply put, it's when project founders attract investments and then suddenly run away with the funds, causing the tokens you hold to instantly become worthless paper. This type of scam is especially rampant in DeFi and emerging blockchain projects because the decentralized nature actually becomes a shield for scammers—once they run, you can't chase them down.

From my observations, rug pulls usually have several obvious signs worth warning about. First, liquidity isn't locked, meaning the project team can withdraw funds at any time. Second, malicious backdoors may be hidden in the smart contract code, such as prohibiting you from selling tokens or allowing developers to infinitely mint new tokens. Additionally, opaque team identities, low community activity, and developers ignoring questions are all typical red flags for a rug pull.

Regarding specific cases, the OneCoin incident is the most infuriating. Founder Ruja Ignatova boasted about creating a "Bitcoin killer," but it was actually a Ponzi scheme based on SQL servers, fraudulently scamming $4 billion. She disappeared in 2017 and remains on the FBI's wanted list. The Thodex exchange is another example—disappeared in 2021, with investors losing over $2 billion. Then there's the Squid Game token, which capitalized on Netflix's popularity to raise $3.3 million, only for the developers to drain the liquidity pool, causing the market cap to plummet from $22k to nearly zero.

But not all rug pulls are premeditated. Some projects start out seriously but fail due to mismanagement or inability to deliver on promises, leading to investor confidence collapsing—this is called a "soft rug." For example, teams overpromise returns, fail to complete features on their roadmap, or core members sell off large amounts of tokens. A "hard rug" is a deliberate scam from the start, intentionally designed to steal money.

To avoid falling into these traps, I recommend the following. First, thoroughly research the project's background and team members—check if they have verifiable track records. Legitimate projects will have clear whitepapers and technical documentation, while scam projects tend to be vague. Second, use blockchain explorers to examine smart contracts—look at fund flows, large holder positions, and whether there are abnormal large withdrawals. Third, tools like Dexscreener or Dextools can help verify if liquidity is locked—locked liquidity at least ensures that trading liquidity won't be suddenly drained.

A particularly important point: don't be fooled by hype on social media. Promises of "100x returns" or "risk-free high yields" on Twitter, Telegram, or Discord are often signs of a rug pull. FOMO can easily lead to impulsive decisions, but the people who make real money are usually those who stay rational.

Finally, diversify your investments. Don't put all your chips into a single high-risk token. Even if you get caught, losses can be kept within acceptable limits. The crypto market has become more complex by 2026, and scam techniques are constantly evolving, but the core principles remain the same—do your homework, stay alert, and trust common sense to greatly reduce the chances of being scammed.