Brand keyword hijacking is when paid search ads target a company's own branded search terms, or when a competitor bids on those same terms to intercept traffic meant for that brand. When a company bids on its own brand name, paid media gets credited with the clicks and conversions even though most of those users would have found the site anyway through organic search, artificially inflating the reported ROAS (return on ad spend) for that campaign.
The term covers two different problems that get conflated constantly in paid search discussions. One is competitive: a rival advertiser buying ads against your brand name. The other is internal: your own campaigns claiming credit for demand you already own. Both distort performance data, but they require completely different fixes.
Brand keyword hijacking describes any situation where a paid search ad appears against a branded query and diverts the click away from where it would naturally have gone. The mechanism is the same in both scenarios: an ad sits above or beside the organic listing and intercepts a user who already knew exactly what they were searching for.
This is the more intuitive version of the term. A competitor buys ads triggered by your company name, hoping to catch prospects mid-search and pull them toward their own product instead. It is common in SaaS, where category comparisons happen constantly and switching costs are low enough that a well-timed ad can genuinely redirect a decision.
This is the version most PPC audits miss, and it is the one directly tied to ROAS inflation. A company runs paid search campaigns targeting its own brand terms, and the ad captures clicks from people who typed the brand name because they already intended to visit the site. Those users were never at risk of going anywhere else. The paid campaign simply stands between them and the organic listing that was already going to convert them for free.
The inflation happens because attribution systems credit whichever channel touched the click last, regardless of whether that channel created the demand or just intercepted it. Brand campaigns almost always show extraordinary ROAS because the cost per click on your own name is low and the conversion rate is high. Neither of those facts means the spend is doing anything useful.
Consider a simplified illustration. A SaaS company's brand name generates 5,000 monthly searches. Historically, the organic listing captures most of that volume and converts a portion into trial signups at zero media cost. The company then launches a modest brand campaign that outranks its own organic result. The ad now captures the bulk of those same searchers, and the attribution model credits the campaign with the resulting signups.
The reported ROAS on that campaign will look extraordinary, often the highest in the account, because the "cost" of acquiring users who were already searching for the brand is trivial compared to the revenue attributed to them. What the number hides is that almost none of that revenue is incremental. The signups would have happened anyway through the organic listing sitting one position below the ad. The campaign has not created new demand; it has relabeled existing demand as paid performance.
This is why you should never pool brand campaigns into a single blended ROAS figure alongside non-brand or prospecting campaigns. Doing so hides the fact that most of the "efficiency" in the account is coming from a channel that isn't generating anything new.
Detecting inflation requires isolating the true incremental effect of the brand campaign from the demand that existed regardless of whether the ad ran. A few methods, used together, give a reliable picture.
Marketing teams evaluating paid search performance often assume a strong ROAS number is proof of a working campaign. Isolating brand from non-brand before drawing that conclusion is one of the fastest ways to find out whether a reported number reflects real growth or simply relabeled organic demand, which is exactly the kind of check Seedling encourages teams to run before trusting a headline metric.
If Auction Insights shows a competitor consistently appearing against your brand queries, the response differs from the internal ROAS problem above, because here there is a genuine external threat to address.
Inflated brand ROAS has consequences well beyond the campaign line item. When a brand campaign reports a ROAS several times higher than every other channel in the account, it skews budget allocation toward a channel that is not generating new revenue, at the direct expense of non-brand and prospecting campaigns that are.
This distortion compounds at the reporting level. A blended account ROAS presented to a head of marketing or a CFO looks healthy specifically because the brand campaign is inflating the average. Strip out brand spend and measure non-brand ROAS in isolation, and the picture often looks considerably weaker, which is the number that actually reflects new customer acquisition performance.
The fix is structural, not cosmetic: report brand and non-brand ROAS as two separate lines, never blended, and treat any brand campaign's reported number as a starting hypothesis rather than a settled fact until you test it against an incrementality study or an exclusion test. Teams that make this separation standard practice stop mistaking demand capture for demand creation, which is the distinction that determines whether a paid search budget is actually growing the business.
Some common questions, answered
Brand keyword hijacking occurs when paid search ads target a company's branded queries and intercept users who were already looking for that brand. It can involve a competitor bidding on the brand name or the company using its own ads to capture clicks that would probably have gone to its organic listing.
Attribution systems credit the paid campaign for clicks and conversions even when users already intended to visit the site. Because branded clicks are usually cheap and convert well, the campaign can report exceptional ROAS while mostly relabelling existing organic demand rather than generating incremental revenue.
Use Auction Insights and impression share data to confirm that competitors are appearing on branded queries. You can file a trademark complaint if they use your registered trademark in their ad copy, bid defensively where the incursion is costing qualified clicks, and set ongoing alerts to detect changes.