On marketplaces where multiple sellers can offer the same product, counterfeiters do not always create their own listings. They attach to yours. A hijacker lists against your product page, undercuts on price, wins the buy box, and ships counterfeits to customers who thought they bought from you. The reviews land on your listing, the returns come to you, and the brand damage is yours. Spotting the takeover early and filing the right report is the difference between a bad week and a bad quarter.
The signs show up on your own product page. A new seller appears on the offer list with no history and a price well below yours. The buy box starts rotating to them. Then the reviews change tone: customers complaining about quality, wrong packaging, or items that do not match the photos, on a product that has not changed. Those reviews are about the hijacker's units, but they attach to your listing permanently.
The second wave is returns and messages. Customers contact you about products you never shipped, with order numbers from the hijacker's sales. Support tickets reference packaging you do not use. By the time this pattern is obvious, the hijacker has usually been selling for weeks.
Marketplaces built the multi-seller listing to create price competition on identical goods. Hijackers exploit the assumption that all offers are the genuine article. They need no relationship with the brand: they create a seller account, find the product page, add an offer, and price to win the algorithm. Some buy a single genuine unit to photograph; most do not bother.
The sophisticated ones manage the takeover carefully. They keep prices just low enough to win the buy box without triggering suspicion, they fulfill quickly to keep metrics clean, and they rotate across multiple seller accounts so that removing one barely dents the operation. The crude ones just dump inventory at half price and burn the account.
Monitor the offer list on your top listings weekly, more often during peak season. Flag any new seller with no feedback history, prices more than a fifth below your floor, or ship-from locations that do not match legitimate distribution. Set up alerts where the marketplace offers them; where it does not, a simple recurring check beats nothing.
Read your own reviews the way an investigator would. A cluster of quality complaints on a stable product is a hijacking signal until proven otherwise. Check the review dates against when new sellers appeared on the listing. The correlation is usually visible once you look for it.
File against the seller, not just the listing: the listing is yours and should stay. The report needs to establish two things, that you own the rights and that this seller's units are not genuine. Test buys are the gold standard here: order from the suspect seller, document what arrives, and photograph the differences against genuine product. A test buy converts suspicion into evidence a reviewer can act on in minutes.
Where the marketplace offers brand protection programs, enrollment changes the game: registered brands get faster review, bulk reporting, and in some cases proactive removal. If you are fighting hijackers without enrollment, enrolling is the highest-leverage step, because every future report gets easier.
Prevention is mostly about raising the hijacker's costs. Brand registry enrollment, serialized or uniquely marked packaging that customers can verify, and a monitored offer list make your listings expensive targets. Some brands add transparency programs that let customers authenticate units; hijackers cannot fake what they cannot reproduce. None of this stops a determined operation, but it moves them to the unprotected brand next door, which is how deterrence actually works at scale.