How to Spot a Crypto Scam

Crypto transactions usually cannot be reversed, and a wallet has no help desk that can give your money back. Scammers know this well. Most schemes do not break the technology at all. They exploit people: trust, urgency and the hope of quick profit. Below are the main warning signs that can help you spot a scam before it costs you.

Guaranteed returns

The most common red flag is a guaranteed profit: "2% a day," "we double your deposit in a week," "risk-free income." There is no such thing as risk-free return in crypto. If a project promises steady high returns but cannot explain where they come from, be careful. Many such schemes pay early participants with money from newer ones until the inflow dries up.

Impersonation

Scammers create accounts that look like famous people, exchanges or projects. They copy the name, profile picture and writing style. The handle may differ by a single character.

Well-known people and companies do not message you first with a way to make money.
Verify accounts through the project's official website, not through a link in a message.

Fake support

A classic setup: you post about a problem in a public chat, and within a minute a "support agent" messages you privately. They ask for your seed phrase or private key, or ask you to "sync your wallet" on some external site.

Remember the core rule: nobody should ever ask for your seed phrase. Not an exchange, not wallet developers, not moderators. Anyone who asks for it is a scammer.

Phishing sites and fake airdrops

Phishing sites are fakes that look like real exchanges, wallets or DeFi apps. Links to them arrive by email, direct message, search ads and comments. The difference in the address can be nearly invisible.

A related trick is the fake airdrop. An unknown token shows up in your wallet with an invitation to "claim a reward" on some website. Interacting with that site can lead to losing your funds.

"Send one, get two back"

Fake giveaways use the name of a famous person or company: send coins to an address and receive double in return. This is always a scam. The coins you send will not come back, and the "it worked for me" replies are usually written by the scammers themselves.

Pump-and-dump

In a pump-and-dump, organizers quietly buy a little-known token, then promote it heavily in chats and on social media. When newcomers start buying and the price climbs, the organizers sell, and the price collapses. Warning signs: aggressive promotion, promises of huge multiples and pressure to "get in before it's too late."

Romance scams and pig butchering

A scheme known as pig butchering can unfold over weeks or months. The scammer makes contact through social media, messaging apps or dating sites, builds a friendship or romance, and then "shares the secret" of their successful investing. The victim is guided to a fake platform that shows growing "profits" and may even allow a small withdrawal. As deposits grow, withdrawals become impossible, and new "taxes" or "unlock fees" appear.

Rug pulls

A rug pull happens when a project's creators collect users' money and disappear. They may drain liquidity from a pool, dump their tokens or simply shut down the website. Warning signs: an anonymous team with no track record, no independent code audit, and a contract that lets the creators mint new tokens or block selling.

Malicious token approvals

In DeFi, you sign an approval so an app can use your tokens. Fake sites ask you to approve unlimited spending. After that, the attacker can move your tokens at any time without asking again.

Read carefully what your wallet is asking you to sign.
Review and revoke old approvals from time to time using tools available in blockchain explorers.

General warning signs

Urgency and pressure: "this offer expires in an hour."
Requests to install an unknown app or browser extension.
Requests to send funds to a "verification" address.
Offers that sound too good to be true.

What to do if you are targeted

Stop all contact and do not send more money, even if they promise a refund in exchange for a "fee."
If your seed phrase may have been exposed, create a new wallet and move your remaining funds to it.
Revoke suspicious approvals in your wallet.
Keep evidence: addresses, transaction hashes, messages and links.
Report the fraud to the platform where it happened and to law enforcement in your country.
Beware of "fund recovery services," which are often a second wave of the same scam.

Summary

Most crypto scams rely on trust and urgency. Never share your seed phrase, check website addresses, do not believe in guaranteed returns or giveaways, and read what you sign. If something looks too good to be true, it almost certainly is.