How to spot crypto scams
The short answer
Most crypto theft doesn't involve hacking the blockchain. It involves tricking people into handing over their keys or signing a malicious transaction.
The most common scams
Fake support. You post about a problem online, and “support” replies or DMs you with a link or asks for your seed phraseSeed phrase A list of 12 or 24 words that can recreate all the private keys in a wallet. Never share it.. Real support teams never DM first and never need your phrase.
PhishingPhishing Tricking someone into giving up passwords, keys or approvals by pretending to be a trusted party. sites. Look-alike websites, often reached through search ads or copied social media posts, that ask you to “connect wallet” and sign something. Behind them is usually a wallet drainerWallet drainer Malicious code, often behind a fake website, that tricks users into signing transactions that empty their wallet..
Fake airdropsAirdrop Free tokens sent to wallets, sometimes as a real reward and often as bait in scams.. Unknown tokens appear in your wallet with a website name in the token’s title. Visiting that site to “claim” them is the trap.
Investment and romance scams. A friendly stranger, a guaranteed return, a trading platform you’ve never heard of. Deposits go in, and withdrawals never come out.
Impersonation. Fake accounts posing as well-known founders, exchanges or celebrities, often promising to “double” any crypto you send.
Red flags
- Urgency: “act now or lose your funds.”
- Guaranteed or unusually high returns.
- Any request for your seed phrase or private key.
- A transaction asking for unlimited token approvalToken approval Permission you give a smart contract to move a specific token from your wallet. on a site you arrived at from a link.
If something already went wrong
- Move any remaining funds to a new wallet with a new seed phrase, from a clean device.
- Revoke token approvals.
- Report the scam to the platform where you found it and to your local authorities.
- Beware “recovery services.” They’re almost always a second scam.
Last reviewed Oct 3, 2026. Educational content only, not financial advice.