Crypto scam and wallet safety glossary

Updated

Short, plain definitions. Where a definition comes from a source, we link it. Where it is our own wording, we say so.

Recovery phrase (seed phrase, Secret Recovery Phrase)
The 12–24 words a wallet generates at setup. Anyone who has them can rebuild the wallet on another device and move the funds. Ledger: "You should never enter your 24 words anywhere other than directly into your device." (Ledger; The Crypto Times)
Hardware wallet (signer)
A physical device that keeps private keys offline and is used to approve transactions. (The Crypto Times) See the wallet safety guide.
Secure Element
The chip inside some hardware wallets that protects private keys. In the Oct 2026 CryptoBilis attack, the implant left it untouched, which is why integrity checks missed it. (BleepingComputer)
Genuine Check
Ledger's test of whether a device is authentic. Ledger warns it cannot detect added implants when the original Secure Element is intact. (BleepingComputer) Scammers fake this screen: see fake firmware updates.
Supply-chain (distribution) attack
Tampering with a product after it leaves the maker and before it reaches you. Ledger called the CryptoBilis case "a localized distribution attack." (Ledger)
Phishing
A fake message or website that pretends to be a trusted company to get you to hand over a secret, such as a password or recovery phrase. (Our wording.)
Address poisoning
Planting a lookalike address in your transaction history so you copy it by mistake. (MetaMask) See our guide.
Vanity address
An address generated to start or end with chosen characters. Scammers use them to make lookalikes. (Etherscan)
Zero-value (dust) transfer
A transfer of zero or nearly zero tokens, sent only to put an address into your history. It doesn't harm the wallet by itself. (MetaMask)
Token spoofing
A fake token that uses the name and symbol of a real one, such as "USDT," to make fake transfers look real. (Etherscan)
Crypto kiosk (crypto ATM, Bitcoin ATM)
An ATM-like machine that exchanges cash for cryptocurrency. Criminals often direct victims to send money through one. (FBI IC3) See Kansas & Missouri data.
Kiosk spread (markup)
The gap between the market price and the kiosk's price. Kansas law counts it as a charge under its fee cap. (HB 2591 §10)
Government / warrant impersonation scam
A caller poses as police, a court or an agency and demands immediate payment, often through a crypto ATM, to "clear a warrant." (Sedgwick County DA)
Tech-support scam
A fake pop-up or call claiming to be Apple, Microsoft or similar. It leads to a "fix" that requires moving money. (KMBC)
Pig butchering (crypto investment fraud)
A scammer builds a friendship or romance online, then steers the victim into a fake crypto "investment" they can never withdraw from. (FBI)
Recovery scam
A follow-up scam that promises, for a fee, to recover money you already lost. The FBI warns about these. (FBI)
Wallet drainer
A malicious website or contract that gets you to sign a transaction or approval, then moves your tokens out. (Our wording; examples are logged in the tracker.)
Token approval (allowance)
Permission you sign that lets a smart contract move a token from your wallet. Drainers abuse unlimited approvals. MetaMask lists "unlimited token approvals" among common scam methods. (MetaMask)
TXID (transaction hash)
The unique ID of a blockchain transaction. Include it in any IC3 report, along with wallet addresses and the kiosk location. (IC3)
IC3
The FBI's Internet Crime Complaint Center, where you report online fraud: ic3.gov. It received 1,008,597 complaints in 2025. (FBI)

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