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Crypto scams in the UK: how to spot them and what to do

Almost every crypto scam ends with one of two requests: type in your recovery phrase, or send your crypto somewhere. Here is how each one gets you there, and how to stop it.

Checked by a person. Simon Geils last went through every claim on this page on 12 Oct 2026. Spotted something out of date? Tell us and it will be corrected.

Pick the scam you want to know about from the tabs in each section. On a phone, tap a scam to open it. Each one follows the same pattern: how it works, how to spot it, and what to do.

  • The one rule
  • Scams that go after your recovery phrase
  • Scams that trick you into sending crypto
  • Scams that target your accounts, or you
  • How to protect yourself: a checklist
  • If you've been scammed

The one rule

Most of the scams below are elaborate ways of getting you to break that rule without noticing. The rest try to get you to send crypto yourself, which is why the second habit matters just as much: check every address on your device's own screen before you approve anything.


Scams that go after your recovery phrase

01Fake supportSomeone "from support" contacts you first

Fake support

How it works

You post about a problem, or search for help, and someone "from support" gets in touch: a reply on X or Reddit, a direct message, an email, or a chat window on a lookalike site. They are friendly, quick and urgent, and before long they need you to "verify", "sync" or "validate" your wallet.

How to spot it
  • They contacted you first
  • They ask for your recovery phrase, or to share your screen
  • There's a deadline, a threat or a "frozen" account
What to do

Stop replying. Go to the maker's or exchange's website yourself, by typing the address, and use their help pages. Real support never contacts you first through social media and never needs your words.

02Phone calls"Your account is at risk, move your funds now"

Phone calls

How it works

A caller says they're from your wallet maker, your exchange, your bank or even the police. Your account has been hacked, they say, and you need to move your crypto to a "safe wallet" right now, or read out your recovery phrase so they can "secure" it.

How to spot it
  • An unexpected call about a security problem
  • Pressure to act before you hang up
  • A "safe wallet" address you didn't create
What to do

Hang up. Wallet makers don't phone their customers. If you're worried about an account, contact the company through its own website or app, from a different phone if you can.

03Fake apps and websitesLookalikes in search ads and app stores

Fake apps and websites

How it works

Lookalike versions of wallet apps and websites appear in search ads, app stores and links. They look identical to the real thing, then ask you to "restore" your wallet by typing in your recovery phrase on your computer or phone.

How to spot it
  • You arrived from an ad, a link or a message
  • The web address is slightly different
  • It asks for your words on a computer or phone
What to do

Download wallet apps only from the maker's own website, typed in yourself and bookmarked. If you've already typed your words in, treat the wallet as compromised and move what's left to a new wallet with a new recovery phrase straight away.

04Emails and texts"Security alert" messages with a link

Emails and texts

How it works

A message claims there's a security problem, a compulsory update, a new regulation or a frozen account. It looks official and links to a page that asks for your recovery phrase. Many are sent to email addresses exposed in past data leaks, so they can use your real name.

How to spot it
  • Urgent: "act within 24 hours"
  • A link or button to "verify" or "update"
  • Any request for your words
What to do

Don't click or reply. Check anything that worries you on the company's own website. Forward scam emails to report@phishing.gov.uk and scam texts to 7726.

05Letters in the postPrinted letters with a QR code

Letters in the post

How it works

A well-printed letter arrives with the right logo, claiming a security problem or a compulsory update. It asks you to scan a QR code or visit a website and enter your recovery phrase. Like the emails, these are often sent to addresses exposed in data leaks.

How to spot it
  • A letter about your crypto you weren't expecting
  • A QR code or web address to visit
  • Any request for your words
What to do

Don't scan or visit anything. A genuine wallet maker will never ask for your recovery phrase by post. Report the letter to the company it claims to be from, using the contact details on their website, then destroy it.

06Social media and giveaways"Send 1, get 2 back"

Social media and giveaways

How it works

Fake accounts impersonate wallet makers, exchanges and well-known figures, sometimes with convincing AI-generated videos. They promise giveaways ("send some crypto, get double back"), or point you to fake apps and support pages.

How to spot it
  • Anything that doubles your money
  • Brand-new or lookalike accounts
  • Comments full of "it worked for me"
What to do

Ignore it. No genuine company or person gives away crypto in return for you sending some first. Report the account to the platform.

07Pre-set-up devicesWords already on the card

Pre-set-up devices

How it works

A device bought from a marketplace or reseller arrives already set up, or with a recovery sheet that already has words printed or written on it. Whoever chose those words can empty the wallet at any time.

How to spot it
  • Words already on the recovery card
  • The device doesn't ask you to set it up from scratch
  • Damaged, opened or resealed packaging
What to do

Don't use it. Buy from the maker or an authorised reseller, and only trust a recovery phrase you watched your own device create.


Scams that trick you into sending crypto

01Address poisoningLookalike addresses planted in your history

Address poisoning

How it works

A scammer sends you a tiny amount from an address made to look almost identical to one you use, matching the first and last few characters. They're hoping that next time you copy an address from your transaction history, you'll pick theirs.

How to spot it
  • Tiny, unexpected incoming transactions
  • Addresses that match only at the start and end
What to do

Never copy an address from your transaction history. Get it fresh from your wallet app, check the whole address on your device's screen, and send a small test amount first.

02Clipboard hijackersMalware that swaps the address you paste

Clipboard hijackers

How it works

Malware on your computer or phone watches for crypto addresses being copied, and swaps in the attacker's address as you paste. At a glance it looks right, so the transfer goes to them.

How to spot it
  • The pasted address differs from the one you copied
  • Your device's screen shows a different address from your computer
What to do

Always check the full address on your hardware device's screen before you approve. It is the one screen malware can't change.

03Approvals and drainersSigning away permission to move your tokens

Approvals and drainers

How it works

A website, often a fake mint, airdrop or "claim" page, asks you to sign something. It isn't a payment: it gives a contract permission to move your tokens. Once signed, a drainer can empty them, sometimes days later.

How to spot it
  • "Claim your free tokens" sites
  • Requests to approve or sign that you don't understand
  • Your device can't show what you're signing in plain terms (blind signing)
What to do

Don't sign anything you can't read and understand on your device's screen. Keep long-term holdings in a wallet you never connect to websites, and review and revoke old approvals with a reputable tool.

04Airdrops and free NFTsTokens you didn't buy, with a link

Airdrops and free NFTs

How it works

Unknown tokens or free NFTs appear in your wallet, often with a website name in the title. Tiny "dust" amounts can also be sent to track you. The link leads to a drainer or a fake support page.

How to spot it
  • Tokens or NFTs you didn't buy
  • A web address in the token's name or picture
What to do

Ignore them. Don't visit the website, try to sell them or interact with them. Hide them in your wallet app if you can.

05Messages in transactionsNotes attached to tiny payments

Messages in transactions

How it works

Some networks let a sender attach a short note to a transaction. Scammers send tiny amounts with notes like "reward ready to claim" or "security alert, visit…", hoping you'll follow the link.

How to spot it
  • A message or memo on a payment you weren't expecting
  • A website to visit, or a reward to claim
What to do

Ignore it. A message inside a transaction is just text anyone can write. Never follow it.


Scams that target your accounts, or you

01SIM swapsYour phone number moved to a criminal's SIM

SIM swaps

How it works

A criminal convinces your mobile network to move your number to their SIM. Your texts, including security codes, now go to them, giving them a way into your email and exchange accounts.

How to spot it
  • Your phone suddenly loses signal
  • "SIM changed" or "number transferred" messages you didn't request
What to do

Use an authenticator app or a security key, not text messages, for your exchange and email accounts. Ask your network about extra account security. If it happens, call your network immediately from another phone.

02Fake investments and romanceA friend online with a "great platform"

Fake investments and romance

How it works

Someone builds a friendship or relationship online over weeks, then introduces a crypto platform where they've "made a fortune". The early profits on screen are fake, and the money can never be withdrawn. These are sometimes called pig-butchering scams.

How to spot it
  • A new online contact who steers talk to investing
  • A platform you can't find independently
  • Fees or "taxes" demanded before you can withdraw
What to do

Stop sending money. Check any investment firm against the FCA Warning List before you pay. Talk to someone you trust, and report it.

03"Recovery services"Someone offering to get your crypto back

"Recovery services"

How it works

After a loss, often after you've posted about it, someone offers to recover your crypto for a fee up front, or for your recovery phrase. It's the same people, or their friends, taking a second bite.

How to spot it
  • They found you, not the other way round
  • Fees up front and "guaranteed" results
  • Claims of special "tracing" or hacking access
What to do

Don't pay. Report the original scam, and read I've lost my recovery phrase. What now? for what can genuinely be recovered.

04Wrench attacksPhysical threats to force a transfer

Wrench attacks

How it works

Instead of hacking, criminals target the person: threats, home invasions or kidnapping, to force a transfer. There have been cases in the UK as well as abroad. Victims are usually chosen because they've been visible, talking about holdings online, or their details were exposed in a data leak.

How to reduce the risk
  • Don't discuss your holdings in public or online
  • Keep your home address off crypto-linked accounts and deliveries where you can
  • Use a setup where no single device or phrase unlocks everything, such as a passphrase or multisig
If it happens

Your safety comes first. Do what keeps you safe, and report it to the police on 999 as soon as you can. A setup that needs keys kept in different places means you physically can't hand over everything, which also makes you a less attractive target.


How to protect yourself: a checklist

  • Enter your recovery phrase only on your device, never on a computer, phone or website.
  • Check every address on your device's screen before you approve, and send a small test first.
  • Treat anyone who contacts you first as a scammer, whatever they claim to be.
  • Download wallet software only from the maker's own website, typed in yourself.
  • Use an authenticator app or security key for your exchange and email, not text messages.
  • Don't sign anything you can't read on your device's screen.
  • Keep long-term holdings separate from any wallet you connect to websites.
  • Stay private about what you hold, online and off.

If you've been scammed

  1. Stop sending anything. No more payments, fees or "unlocking" charges.
  2. If your recovery phrase was exposed, set up a new wallet with a new recovery phrase on your device, test the backup, and move whatever is left there straight away.
  3. Secure your accounts. Change your email and exchange passwords and switch to an authenticator app.
  4. Contact your bank or card provider if you paid by bank transfer or card. Do it quickly: some payments can be stopped or refunded.
  5. Report it. In England, Wales and Northern Ireland, report to Report Fraud (the service that replaced Action Fraud) at reportfraud.police.uk or on 0300 123 2040. In Scotland, call Police Scotland on 101. Your bank may need the crime reference number.
  6. Tell the exchange the crypto was sent to, if you know it. They can sometimes freeze funds.

Getting help

If you're not sure whether something is a scam, a KeyCompass drop-in hour is a calm place to check before you act. And a security review looks at your whole setup against everything on this page, with a written list of what to fix, without ever seeing your words.

KeyCompass never asks for your recovery phrase, a photo of it or any part of it, and never contacts you first. Anyone who does, whatever they claim to be, is attempting to steal from you.

How a security review works, and what it costs