Classified ads scams: the traps on online marketplaces

Selling a console, buying a bike, passing on a piece of furniture: classified ads and marketplaces make these exchanges between private individuals easy. Scammers slip in by posing as an ordinary buyer or seller, then steering the conversation away from the platform's protections. Knowing their recurring scripts lets you spot them from the very first messages.

The most common scripts

On the seller's side, the most common trap is the fake buyer who overpays. They claim to be very interested, even offer to pay more than you asked, and invoke a "shipping service" or a middleman who will demand fees. You advance those fees, the buyer evaporates.

Next comes the fake payment or delivery link. The scammer sends a link supposedly meant to release a transfer or track a parcel. The page imitates the marketplace, a well-known courier, or a bank, and captures your login details along with your card information.

On the buyer's side, a seller may ask you to leave the platform to close the deal faster, by message, email, or another channel. Outside the official environment, no guarantee applies anymore. Finally, the bogus shipping service presents itself as a turnkey solution, complete with a fake dispatch confirmation and a demand for immediate payment to release the parcel.

Why these scams work

These traps lean on two simple levers. The first is the trust built by a polite exchange and a veneer of administrative seriousness: confirmations, tracking numbers, credible logos. The second is urgency, which pushes you to act before you think, on the pretext that another buyer is waiting or a deadline is about to expire.

As long as the exchange stays friendly and fast, you lower your guard. That is precisely the moment the scammer waits for, to make you click or advance money.

The right reflexes

A few simple principles are enough to protect yourself.

• Stay on the platform for the whole transaction, from the first message to the payment.
• Never click a payment or delivery link sent in a private message.
• Refuse any offer to pay more than the agreed price, and any request to advance fees.
• Favour the integrated payment and delivery the service offers, which give you recourse in a dispute.

If a link is sent to you anyway and you hesitate, analyse its real address with our URL checker before opening the page. An address that does not match the official site, or that mixes reassuring words with an unknown domain, should make you back out.

If doubt persists or you are caught out

For a suspicious message, use the platform's report button: it alerts their team and protects other users. If you handed over banking details or paid through a fake link, contact your bank to block the payment and keep the exchanges as evidence. You can also report the attempt to a national fraud service such as Action Fraud.

These person-to-person frauds are an extension of the fake-shop and non-delivery traps. For the full picture, see the online shopping scams guide.