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Stop interacting with the site, then work out exactly what happened: a wallet connection, a signed message or transaction, a token approval, a disclosed recovery phrase or private key, or crypto sent. These are different events and call for different responses. A connection alone does not prove your funds were stolen, but it also does not tell you whether you signed an authorization earlier.
First, stop and identify what happened
- Close the suspicious page. Do not reconnect, send funds, sign a message, or approve a transaction to investigate. Avoid links to “security” or “revoke” tools supplied by the presale site.
- Check your wallet activity and prompts. Determine whether you only connected, signed a message or transaction, approved a token allowance, disclosed a recovery phrase or private key, or sent cryptocurrency. Note the network (blockchain) involved and whether unfamiliar transactions are appearing.
- Keep evidence for reporting. Save the website domain, wallet addresses, transaction hashes, messages, and timestamps. Do not share your recovery phrase or private key in a report, screenshot, or support conversation.
Do not assume that connecting means money was taken, or that connecting means no authorization was granted. The next steps depend on the actual interaction.
Understand the difference between connecting and authorizing
A wallet connection generally lets a decentralized application (dapp) view wallet information and suggest transactions. MetaMask says assets cannot be moved unless you sign a transaction. A signature or transaction is a separate action: depending on what you approved, it may authorize a contract to access or move tokens.
A token approval is a distinct on-chain permission. Some allowances can be broad or unlimited, so a contract may have permission to move a particular token up to the approved amount. MetaMask explains that disconnecting does not cancel an approval: “Note that disconnecting your wallet from a dapp does not affect token approvals.”
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- Effortlessly build your crypto portfolio via the all in one Ledger Wallet app: buy, sell, send, receive, swap, stake and more across popular blockchains. 15,000+ coins & tokens in a single dashboard. Keep a close eye on the market. Compare service providers. Track performance. Get timely alerts. Build your portfolio with confidence.
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Take the action that matches your situation
If you only connected your wallet
Disconnect the dapp using the connection settings in your wallet. In MetaMask, its dapp guide explains how to manage connected sites; other wallets may use different labels or menus. Disconnecting limits that connection, but it does not revoke any token approvals you may already have made.
If you signed a token approval
Review token allowances on the same network where you approved them. Use the wallet’s own portfolio or approval-management feature, or a trusted chain explorer for that network. Check which token and contract have permission, and revoke any approval you do not want to remain active. MetaMask’s guidance covers understanding approvals and revoking token approvals.
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Revocation is itself an on-chain transaction and may require gas (the network fee). Confirm the network and contract details in your wallet before submitting it. Do not follow an unverified revocation link from the suspicious site.
If you signed a message or transaction but are unsure what it did
Review the wallet’s activity and the transaction details on the relevant network. A message signature is not automatically a token approval, but its meaning depends on what was signed; a transaction may transfer assets or set permissions. If you cannot determine what the action authorized, avoid further signing and use your wallet’s official help materials or a trusted chain explorer to inspect it. Do not share secrets with anyone offering to check.
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If you disclosed a recovery phrase or private key
Treat that wallet as compromised. If possible, use a clean, trusted device and move remaining assets to a new wallet with a new recovery phrase. Stop using the compromised wallet and any other accounts controlled by the disclosed phrase. Never enter the old phrase into a “recovery” website or give it to support staff.
If you see unauthorized transactions or sent funds
Act promptly. If you sent cryptocurrency through an exchange or payment service, contact that company immediately and ask whether it can help. Save transaction hashes and other evidence, then report the suspected fraud to the appropriate authorities. Confirmed blockchain transactions are generally not reversible by a wallet provider, and reporting does not guarantee that funds will be recovered.
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Assess a presale without relying on its marketing
A guarantee of high or fast returns, claims of little or no risk, or pressure to act immediately are warning signs of an investment scam. The FTC recommends researching an investment independently and verifying claims rather than relying only on promotional material, testimonials, reviews, or blogs. Apply the same caution to a crypto presale: check the project’s identity and domain, look for independently verifiable claims and documented risks, and take time to investigate.
- A polished website or active online discussion does not establish that an offering is safe.
- A wallet security badge or warning label is informational, not a guarantee or a complete contract audit. The absence of a verified badge alone does not prove a site is dangerous.
- One warning sign is not, by itself, proof that a particular presale is fraudulent. No individual presale is verified here.
The FTC’s 2022 data spotlight reported that more than 46,000 people had reported losing more than $1 billion in cryptocurrency to scams since the start of 2021. That is a cumulative figure published in June 2022, not a current annual estimate. FTC data spotlight.
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Report suspected fraud and guard against recovery scams
For U.S. readers, the FTC lists these reporting options for cryptocurrency fraud:
- FTC: ReportFraud.ftc.gov
- CFTC: CFTC.gov/complaint
- SEC: Tips, Complaints and Referrals (TCR)
- FBI Internet Crime Complaint Center (IC3)
- The cryptocurrency exchange or payment service used to send the funds.
For a crypto payment, the FTC advises contacting the exchange or ATM operator immediately to request help. Outside the United States, contact the relevant national consumer-protection agency, financial regulator, and cybercrime authority.
Be wary of anyone who contacts you unsolicited promising to recover stolen cryptocurrency. The FTC warns that recovery scammers may demand an upfront fee, retainer, processing payment, or financial details, potentially causing further losses. Do not pay them, and verify agency contact details independently.
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