Stop interacting with the site. Do not connect again, send crypto, sign a message, or approve a transaction to investigate it. Then work out exactly what happened: connecting a wallet is not the same as signing a transaction, granting a token approval, or sharing your recovery phrase. The right response depends on which of those events occurred.
This is a general incident-response guide, not a verdict on any particular presale or contract. The steps below draw on MetaMask and U.S. Federal Trade Commission guidance; other wallets may use different settings and labels.
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First, identify what happened
Close the suspicious page and note its domain. Do not follow links on it to investigate or revoke permissions. Check your wallet’s activity and, if needed, the relevant network’s transaction history using a wallet or explorer you trust. Classify the interaction before deciding what to do:
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- Signed a message or transaction: Review what was signed and the wallet activity. A transaction may have changed on-chain state; a message signature can have consequences depending on what it authorized. Do not sign anything further just to test the site.
- Approved token access: A token approval can authorize a smart contract to move a particular token from your wallet. Some allowances can be broad or unlimited, so check the allowance rather than assuming the connection was the only permission.
- Shared a recovery phrase or private key: Treat the wallet as compromised. Anyone with those secrets may control it.
- Sent crypto or see unauthorized activity: Preserve the transaction details and act promptly on the compromised-wallet and reporting steps below.
If you only connected your wallet
Disconnect the site using your wallet’s connection settings. In MetaMask, use its dapp connection controls; the exact menu names may change, and other wallets have their own settings. Disconnecting limits the site’s connection, but it does not undo transactions or revoke token approvals already granted.
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MetaMask states: “Note that disconnecting your wallet from a dapp does not affect token approvals.” Keep that distinction in mind: connection status and on-chain spending permissions are separate.
If you signed a token approval
Inspect token allowances on the same network where you approved access. Use your wallet’s own portfolio or permission-management feature, if available, or a trusted chain explorer. Do not use an approval-management link supplied by the suspicious presale website.
- Open the wallet or trusted explorer independently, not through a link from the suspicious site.
- Select the network involved and review the token approvals or allowances associated with your address.
- Identify approvals you do not recognize or no longer want, and use the wallet or explorer’s revoke control.
- Review the transaction carefully in your wallet before confirming. Revoking is itself an on-chain transaction and may require gas on that network.
Revocation prevents the contract from using the allowance going forward; it cannot reverse a transfer that has already happened. If you are unsure whether a transaction was an approval, avoid signing additional transactions until you can verify it through a trusted wallet or support channel.
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If you disclosed your recovery phrase or private key
Do not enter the phrase again, send it to support, or reuse the old wallet. If possible, use a clean, trusted device and create a new wallet with a new recovery phrase. Move remaining assets to the new wallet as soon as you can do so safely, then stop using the old compromised wallet and accounts tied to that recovery phrase. Never share the new phrase.
If the device itself may be compromised, avoid using it to create or access the replacement wallet. A hardware wallet does not repair a disclosed recovery phrase, remove a malicious approval, or reverse a transaction that was already signed.
If crypto has left the wallet
Contact the exchange, payment service, or ATM operator you used to send the funds immediately and ask whether they can help. Confirmed blockchain transactions are generally not reversible by a wallet provider, and reporting does not guarantee recovery. Do not pay anyone who promises otherwise.
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Keep evidence for your reports: the website domain, wallet addresses, transaction hashes, relevant messages, and timestamps. Never include a recovery phrase or private key in a report, public post, or message to anyone claiming to help.
Report suspected fraud and avoid recovery scams
For U.S. readers, the FTC lists these reporting channels for suspected crypto fraud:
- ReportFraud.ftc.gov
- CFTC.gov/complaint
- The SEC’s TCR portal
- IC3.gov
- The cryptocurrency exchange company used to send the money
Outside the United States, contact the relevant national consumer-protection agency, financial regulator, and cybercrime reporting authority. Find contact details independently rather than using a link or phone number sent by the suspicious site.
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Be wary of unsolicited messages from people claiming they can recover stolen crypto. The FTC warns that recovery scammers may demand an upfront retainer or processing fee, or ask for financial details. Do not pay them or share sensitive information.
How to assess a presale before interacting
Guaranteed returns, claims of large or fast profits with little risk, and pressure to act immediately are investment-scam warning signs. The FTC advises researching an investment independently and checking claims rather than relying only on promotional statements, testimonials, reviews, or blogs. Apply the same caution to a crypto presale.
- Check whether the project’s identity, website domain, and claims can be independently verified.
- Read the documented risks and understand what the presale actually promises before sending funds.
- Treat pressure to invest before you can research as a reason to pause, not as evidence that you must act.
- Do not treat a polished website, online discussion, or wallet security badge as proof that an offering is safe. MetaMask describes trust signals as informational, not a guarantee; the absence of a verified badge alone does not prove a site is dangerous.
No individual presale is assessed here, and a warning sign by itself does not establish fraud. The FTC reported in June 2022 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 from that 2022 data spotlight, not a current annual estimate. FTC data spotlight, June 2022.
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