Search your brand name and look at the ads above the organic results. Increasingly, brands find a listing there that is not theirs: a marketplace ad, a lookalike domain, or a sponsored result selling counterfeits of their own products. The counterfeiter is bidding on your brand keywords, paying a few cents a click to intercept the customers who were already looking for you. It is the cheapest customer acquisition in counterfeiting, because you did all the brand building and they just rent the last mile.
The mechanics are simple. Search ad platforms let anyone bid on a brand term as a keyword; trademark law restricts what the ad can say, not who can bid. So the counterfeit seller bids on your brand name, writes ad copy that stays just inside the rules, and links to a marketplace listing or a standalone storefront selling fakes. Your own ad sits next to it, or below it if the hijacker outbids you. The shopper searching for your brand sees two options, clicks the cheaper-looking one, and buys a counterfeit with your name on the box.
The sophisticated operators rotate. When one ad account gets suspended for policy violations, the next one is already warmed up. They use slight misspellings and broad-match variants to catch traffic your own campaigns miss, and they target the high-intent, high-margin products: the hero SKU, the new launch, the item with the longest waitlist. This is not random. It is arbitrage on your demand curve.
The direct cost is the diverted sale, but the indirect costs are worse. Every shopper who buys a counterfeit through a hijacked ad and receives a bad product blames you, not the seller they clicked. Those experiences become one-star reviews on your real listings, chargebacks on your payment processor, and support tickets your team has to handle for products you never sold. The hijacker pays for the click; you pay for everything after it.
There is also a bidding-war tax. When a counterfeiter bids on your brand term, the auction gets more competitive and your own cost per click rises. Brands often discover the hijack indirectly, through a sudden jump in branded CPC with no change in their own campaigns. You end up paying more to defend traffic that was already yours, which is exactly the outcome the hijacker wants: either they steal the click cheap, or they make your clicks expensive.
First, document everything. Screenshot the ad, note the keyword that triggered it, capture the landing page URL and the seller behind it. Ad platforms have trademark complaint processes, and a well-documented complaint with the ad copy, the keyword, and evidence that the landing page sells counterfeits moves much faster than a vague report.
Second, file the trademark complaint with the ad platform, not just the marketplace. Taking down the listing leaves the ad account free to point at the next listing. Getting the ad account suspended for trademark abuse cuts off the traffic source, which is the asset the hijacker actually values. Platforms take repeat ad-policy violators more seriously than repeat listing violators, so connect the dots across the accounts you find.
Third, defend the auction while enforcement runs. Increase bids on your exact-match brand terms and make sure your ad copy and landing pages out-convert the hijacker's. This is a holding action, not a solution: you should not have to pay a permanent tax to defend your own name. But while the complaints work through the system, owning the top slot starves the hijacker of the clicks that make the scheme profitable.
The strategic goal is economic, not legal. Counterfeit ad hijacking persists because the math works: cheap clicks, high-intent traffic, decent conversion. Every enforcement action should aim to break that math. Suspended ad accounts force them to rebuild. Higher bids on your defended terms raise their costs. Faster takedowns shorten the window where any single account is profitable. No single action ends it, but stacked together they push the scheme below the profitability line, and counterfeiters abandon unprofitable channels faster than they abandon illegal ones.