How to avoid marketplace scams.

Quick answer. Verify the person, then use a payment method that can be reversed. Pressure toward Zelle, wire, crypto or gift cards is not a preference — it is the scam itself, because those methods are final the moment they complete.

Marketplace fraud is a volume business. Listings are cheap to create, the scripts are reused across platforms, and the entire operation depends on moving you to an irreversible payment before you have established who you are dealing with. Two habits defeat most of it.

Buyer beware: the seller-side patterns

The price that is too good. A console, a phone, a car, a rental, priced noticeably below everything comparable. The discount is the bait and the urgency that follows is the mechanism: another buyer is interested, the deposit holds it.

The seller who cannot meet. Deployed, relocating, selling on behalf of a relative, will ship after payment. Shipping a local-pickup item is the tell; the story exists to explain why you cannot see the thing.

The photographs that belong to someone else. Reverse-image a listing photo and you will often find the original — a dealer's site, an old auction, another city. Ask for a photograph taken now, with a specific detail in it: a hand-written note with today's date, a serial number, a particular angle.

The off-platform move. "Message me on this app instead" removes the platform's record, its protection scheme and its reporting path in one step. Nothing legitimate requires it.

Seller beware: the buyer-side patterns

Overpayment by mistake. A cheque or transfer arrives for more than the price, with an apology and a request to refund the difference. The original payment reverses days later; the refund does not.

The fake confirmation. An email that looks like the payment provider, saying funds are held and will release once you ship or pay a "shipping fee". Payment providers do not hold funds hostage against a seller's payment. Check your own account, not the email.

The verification-code request. A buyer asks you to read back a code they have sent "to prove you are real". That code is a login or account-verification code for a service being opened in your name. No legitimate buyer needs one.

The courier arrangement. The buyer insists on their own shipping agent, often with a payment you must make first. The agent and the buyer are the same operation.

Verify the person before the payment

A name plus one anchor is usually enough for a private sale. Records exist for real people: an address history, property records, court filings, a business registration for anyone trading at volume. A people search shows who shares a name, and the records attached to the candidate you choose separate a person from a profile.

For a dealer or a company, check the registration rather than the website — a Secretary of State record shows when the business was formed, which is the single most useful number when a "long-established" seller was registered last month. Verifying a business contact covers the order.

For an account rather than a person, look at its history: the age of the profile, whether the reviews arrived in a burst, whether the photographs all appeared the same day. The seller check goes through what to look at and in what order.

Pay with something that can be undone

Card payments and platform checkout can be disputed. Bank transfers, Zelle-style instant payments between accounts, wires, crypto and gift cards cannot, in any practical sense — once complete, recovery depends on the recipient's goodwill, and there is none.

Peer-to-peer apps deserve a line of their own: paying a stranger by "friends and family" removes the purchase protection that the same app offers for goods. Sending it that way at a seller's request is the most common self-inflicted loss in private sales.

For cash meetings, use a public place with cameras — many police departments run exchange zones in their car parks — and take someone with you. For vehicles, meet at the buyer's bank, where the funds can be confirmed at the counter.

What a safe transaction looks like

You saw the item, or you saw a photograph taken on request with a detail only the holder could produce. The name matches a record you checked yourself. The payment went through a method with a dispute path. Nothing about the exchange happened at speed because someone else was supposedly about to buy it.

If any one of those is missing, the transaction is not unsafe by definition — but you are relying on trust, and the amount at risk should match that.

If it has already gone wrong

Contact the payment provider first: the card issuer, the bank, the app. Ask specifically about a chargeback or a recall, and do it the same day.

Report the listing to the platform, which removes it faster than any other route, and file with the FTC at ReportFraud.ftc.gov. For a wire or crypto payment, add ic3.gov, where speed matters most.

Keep the listing URL, the profile, the message history and the receipts. Screenshots are worth more than descriptions, and accounts are deleted quickly once reported.

Key takeaways

Verification and reversibility are independent protections, and you want both. A verified person paid by wire is still a risk if you were wrong about them; a stranger paid through platform checkout is a dispute rather than a loss.

Every pressure toward speed, secrecy or an irreversible method is information. Treat it as the seller or buyer telling you what they are, and step back — the listing that disappears when you slow down was never a deal.

Before you post a listing yourself, it is worth knowing what a stranger can already learn about you from your name and city: the free self-check shows it.