Phoebe Gates’ $43.5M AI Startup Phia Faces Shocking Cookie-Stuffing Scandal

Phoebe Gates’ $43.5 Million AI Startup Phia Faces Cookie-Stuffing Scandal After Allegedly Claiming Sales It Didn’t Generate

1. Phoebe Gates’ $43.5M AI Startup Phia Hit by Cookie-Stuffing Scandal
2. Phia Scandal: Phoebe Gates’ AI Shopping Startup Accused of Taking Credit for Sales It Didn’t Generate
3. Inside the Phia Scandal: How an AI Shopping App Allegedly Claimed Other Affiliates’ Commissions
4. Phoebe Gates’ Phia Faces Growing Backlash Over Alleged Affiliate Tracking Scheme
5. The $43.5M Phia Scandal Could Change How AI Shopping Apps Make Money
6. Phia’s Hidden Affiliate Problem: What the Cookie-Stuffing Allegations Mean for Online Shoppers
7. AI Shopping Startup Phia Under Fire After Investigators Find Alleged Fake Affiliate Clicks

An AI shopping startup backed by major investors and co-founded by Bill Gates’ daughter Phoebe Gates is facing a growing backlash after investigations found that its browser extension allegedly claimed affiliate commissions on purchases it may not have actually generated.

Phia, the shopping technology company founded by Phoebe Gates and Sophia Kianni, was supposed to make online shopping easier by helping consumers find lower prices, apply coupons and discover better deals.

Instead, the startup is now at the center of a controversy over one of the internet’s most closely watched forms of affiliate fraud: cookie stuffing.

The allegations are significant because Phia has raised $43.5 million, attracted high-profile investors and built a rapidly growing consumer product. The controversy could therefore become much more than a technical dispute over affiliate tracking—it could become a major test of how AI-powered shopping platforms make money behind the scenes.

What Is Phia Accused of Doing?

At the heart of the controversy is Phia’s browser extension and the way it allegedly handled affiliate links.

Affiliate marketing normally works in a straightforward way. A publisher recommends a product, a shopper clicks the affiliate link and eventually purchases the product. The affiliate that legitimately referred the customer can then receive a commission.

Investigators allege that Phia’s technology sometimes bypassed that process.

Independent researcher Ben Edelman reported finding functionality in Phia’s software that could automatically trigger affiliate links without a genuine user click. His investigation identified a feature called “enable_coupon_auto_drop”, which could cause an affiliate link to load automatically while a shopper was already at a retailer’s cart or checkout page.

That distinction matters.

If a shopper arrives at a retailer through another publisher, a Google advertisement or directly, Phia allegedly could still insert its own affiliate tracking information at the final stage of the purchase.

In effect, the extension could potentially position itself to receive credit for a transaction it did not actually generate.

The Hidden Tab That Raised Questions

The controversy became even more serious after testing reportedly showed that the extension could open a background browser tab during checkout and load Phia’s affiliate URL.

Because the tab could operate in the background, an ordinary shopper might never realize that another affiliate referral was being triggered.

Testing by Bloomberg, Capital One Shopping and Edelman reportedly identified similar behavior involving Phia’s extension. Inc. reported that independent testing found Phia generating affiliate clicks without meaningful user interaction.

The alleged behavior was particularly concerning because affiliate systems rely on tracking cookies to determine which publisher deserves commission.

If a cookie belonging to another affiliate is replaced or overridden, the commission can potentially move from the original referrer to another company.

That is the fundamental issue behind the cookie-stuffing allegations.

Phia Says It Was a Software Bug

Phia has pushed back against the characterization of the incident as deliberate fraud.

The company said it discovered that a recent software release was causing sales to be incorrectly attributed to Phia and said it moved quickly to disable the problematic functionality after being notified.

However, the explanation has faced scrutiny.

Edelman’s technical analysis argued that the behavior was connected to a feature explicitly designed to automatically drop affiliate links. His analysis also said the functionality appeared in Phia’s software as early as December 2025 and remained active for months.

That timeline is one reason the controversy has continued even after Phia disabled the feature.

The key question is no longer simply “Was there a bug?”

It is whether the disputed functionality was accidentally introduced, deliberately designed, inadequately monitored—or some combination of those factors.

Impact Suspended Phia

The controversy has already had consequences within the affiliate marketing ecosystem.

Impact.com, one of the major platforms connecting advertisers and affiliates, suspended Phia while the situation was reviewed.

The platform has also been involved in efforts to reconcile potentially affected transactions, according to reports.

Phia has said it intends to reverse improperly attributed transactions and has taken steps to strengthen its compliance processes.

The company has also said it plans to appoint a compliance officer as it responds to the fallout.

The Money Behind the Controversy

The allegations are attracting extraordinary attention partly because of Phia’s funding and celebrity connections.

The company has raised approximately $43.5 million, according to reports, and has attracted prominent investors and celebrity backers.

That makes the controversy particularly damaging to a startup that had positioned itself as an innovative AI-powered shopping platform.

The incident also raises uncomfortable questions for investors: How thoroughly are fast-growing AI startups auditing the technology that directly controls their revenue?

For a company operating browser extensions and affiliate systems, a small piece of code can potentially affect thousands or millions of transactions.

Phia’s Revenue Reportedly Fell After the Feature Was Disabled

One of the most striking details surrounding the controversy is what reportedly happened after the disputed functionality was removed.

The Cut reported that Phia’s daily revenue fell dramatically after the company disabled the feature, from roughly $80,000 to as little as $10,000 per day.

If accurate, that drop raises another important question: how much revenue had been connected to the disputed attribution system?

That does not, by itself, establish wrongdoing. But it explains why affiliate networks, merchants and competing publishers have taken the allegations seriously.

Why This Matters Beyond Phia

The Phia controversy is bigger than one shopping extension.

Affiliate marketing depends on trust.

Publishers invest money creating reviews, buying advertising, building audiences and sending shoppers to retailers. Retailers then pay commissions based on those referrals.

If software can silently intercept a purchase at checkout and claim the commission, legitimate publishers can lose revenue even though they did the work of generating the customer.

It could also distort the data retailers use to determine which advertising channels actually work.

That is why cookie stuffing has become such a sensitive issue in the affiliate industry.

A New Problem for AI Shopping Assistants?

Phia’s situation also highlights a growing challenge for the emerging AI shopping industry.

AI assistants are increasingly being designed to search the internet, compare products, find discounts and help consumers complete purchases.

But these systems can also sit extremely close to the point where money changes hands.

That creates an important transparency question:

When an AI shopping assistant recommends a product, who gets paid when the customer buys it?

And perhaps more importantly:

Does the consumer know why a particular product, retailer or discount is being presented?

As AI becomes increasingly involved in online commerce, regulators, retailers and affiliate networks may demand much clearer answers.

What Happens Next?

Phia has already disabled the disputed functionality and said it will correct improperly attributed transactions.

But the company could still face difficult questions from affiliate networks, merchants, investors and potentially other parties affected by the alleged conduct.

The biggest issue may ultimately be whether the behavior is determined to have been an accidental technical failure or something more deliberate.

For now, no criminal charge against Phia or its founders has been established by the reporting cited here. The controversy remains centered on allegations, technical findings, affiliate-network actions and the company’s response.

But the damage to trust may be harder to fix than the code itself.

Phia was built to help shoppers find better deals.

Now, its biggest challenge may be convincing the shopping ecosystem that the company itself can be trusted when it comes to the money flowing behind those deals.

The Phia scandal is a warning for the entire AI commerce industry: when software controls the referral, the tracking cookie and the commission, transparency is no longer optional.