Retailers and affiliate partners risked losing accurate sales attribution after Phia's browser extension injected its own referral codes, allowing the startup to claim commissions it didn't drive. Impact.com suspended Phia after a Bloomberg investigation and a TechCrunch summary on July 10, 2026 found the behaviour, described as cookie stuffing, affected the systems retailers and affiliate networks use to allocate payments. Phia is a shopping extension launched in 2025 by Phoebe Gates and Sophia Kianni that earns revenue from affiliate commissions, and TechCrunch reports it had raised more than $40 million and counts Khloé Kardashian and Hailey Bieber among its backers. It's not yet clear whether affected retailers or affiliate partners will seek audits, reimbursements or contract disputes.
Retailers and affiliate partners faced misdirected commission payments after Phia's extension sometimes opened a background tab and injected its own referral code during checkout, a Bloomberg investigation found. That injected code could override referral parameters set by another referrer or by users arriving directly, allowing Phia to register the referral click and potentially receive the commission for purchases it didn't originate.
How the attribution broke
Bloomberg's technical analysis, backed by tests from an independent consultant and a competing affiliate, replicated the behaviour and showed how the extension altered the normal flow of referral parameters. The method mirrors what the industry calls cookie stuffing or attribution fraud, a problem that has led to litigation in earlier cases. Bloomberg and TechCrunch both pointed to Honey, the browser extension bought by PayPal, as a prior company that faced a class action over similar allegations.
The practical effect is straightforward. Affiliate systems track who introduced a shopper so merchants and networks can split commissions. If a background action swaps in a different referrer at checkout, the network records the wrong originator. That shifts money away from the merchant's intended partner and muddles reconciliation between retailers and affiliate networks.
Commercial stakes and the response
Phia launched in 2025 as a price-aggregation browser extension that compares offers across thousands of retailers and earns through affiliate links. TechCrunch reports the startup had raised more than $40 million and lists celebrity backers including Khloé Kardashian and Hailey Bieber. That funding and the extension model make accurate attribution central to how revenue is shared between affiliates and merchants.
Impact.com, the affiliate and influencer platform, identified behaviour in Phia's extension it said was inconsistent with platform policies and suspended Phia's account, according to reporting. The suspension is the clearest immediate consequence for the startup.
Retailers and competing affiliates that spotted abnormal attribution flagged the behaviour to the platform, which led to the suspension.
Phia told Bloomberg it had made the necessary changes and that the issue had been resolved after it was flagged. Bloomberg re-tested the extension and found the behaviour had stopped. TechCrunch reports Phia didn't respond to its request for comment. It remains unclear whether the code changes will satisfy retailers and affiliate partners or whether audits, reimbursements or contract disputes will follow.
The case raises a second-order question about monitoring and enforcement inside affiliate networks. If a high-profile extension can alter referral flows quietly, platforms and merchants will need clearer technical safeguards and faster reconciliation processes to detect and reverse misattribution. The reporting shows how a single line of injected code can shift commission flows across many merchants in a short space of time.
For merchants the immediate costs are the most tangible. Misattributed sales reduce the payment pool for legitimate referrers and force retailers into post-sale reconciliations.
For affiliate networks the reputational risk matters too: networks are meant to provide trustworthy tracking. A suspension by a major platform like Impact.com signals that platforms will treat suspected attribution manipulation as a policy breach.
Whether affected retailers will pursue remedies is still unknown. Bloomberg's retest is the last concrete development reported, and TechCrunch's coverage notes Phia's fundraising and investor list without a company response to its queries.
Impact.com's suspension and Bloomberg's retest are the last confirmed developments. Watch whether retailers push for audits or reimbursements, whether Impact.com tightens technical safeguards or policy enforcement, and for any public statement from Phia or its backers.
This article was created with AI assistance.
