Crypto scams: the full catalogue and its warning signs

Crypto scams move tens of billions a year, and not because the victims are stupid: because the scammers are full-time professionals and your guard is down on a Tuesday night. This guide catalogues the ones that really are doing the rounds in Spain, with their exact tells — reading it end to end is the best ten minutes you will invest all year.

The five that take the most money

1. “Pig butchering”: the romance-investment scam

Somebody messages you “by mistake” on WhatsApp, or meets you on a dating app. Weeks of genuine conversation, no rush at all. One day they mention that they invest in crypto and show you their platform — with charts, a rising balance, even small withdrawals that go through. Once you have put in enough, the platform “freezes” your account and asks for tax payments to release the funds. All of it — the person, the platform, the profits — was scenery. It is the most lucrative scam in the world right now, industrialised out of fraud centres that operate like companies.

2. Seed phrase phishing

An email from “Ledger”, a website identical to your exchange’s, a fake technical support account on Twitter that gets back to you within minutes. They all end the same way: asking for your seed phrase, or asking you to sign something with your wallet. Burn this into your memory: no legitimate organisation will ever ask you for your seed phrase. Not one. Never. Whoever asks is robbing you — with no known exceptions.

3. “Guaranteed” returns

An “arbitrage bot”, “enhanced staking”, a manager who promises 3% a week. The arithmetic is merciless: 3% a week is more than 350% a year — if it existed, it would not need your money. These are Ponzi schemes: they pay the first people in with the money of the last people in, until no more last people turn up. In crypto, real yield exists but it is modest and explicable; the guaranteed, extraordinary kind is always — always — a scam.

4. Rug pulls and booby-trapped memecoins

A new token, a euphoric Telegram group, paid influencers. The creator concentrates the supply, waits for the wave of buying and sells the lot — the price goes to zero in minutes. In the casino of the memecoins this is not the exception: it is the business model of thousands of launches a day.

5. Fake giveaways and deepfakes

A video of Elon Musk or of some famous executive announcing that he will “send back double” whatever you send him, on a YouTube livestream with thousands of fake viewers. With today’s artificial intelligence, the video is indistinguishable from the real thing. The rule that never fails: nobody gives away money in return for receiving money.

Universal red flags

• Urgency: “today only”, “last places left”. Haste is a tool, not a coincidence.
• Unsolicited contact: the opportunity that finds you, rather than the other way round, starts out owing you an explanation.
• Withdrawals with a toll: any platform that asks you for a payment in order to GIVE BACK your own money is a scam in its final phase.
• No licence: use only platforms authorised under MiCA, the EU regulation on crypto-assets; the CNMV, Spain’s securities regulator, also publishes warnings about unauthorised firms — what Spain calls chiringuitos financieros.

If you have already fallen for one

• Cut off all contact and do not pay another euro — the “unblocking fees” are the second phase of the same scam.
• Keep all the evidence (chats, addresses, transfers) and report it: to the Policía Nacional or the Guardia Civil, Spain’s two national police forces, and tell your bank as well if any bank transfers were involved.
• And watch out for the third phase: the “fund recovery” outfits that get in touch afterwards promising to rescue what you lost in exchange for a payment up front. They are the same people, or colleagues of theirs.

The underlying defence is structural: look after your keys properly (wallets, security) and invest on criteria that do not depend on what a stranger tells you — that is where to start.

This content is for information only and does not constitute financial or legal advice.