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Phoebe Gates’ Startup Phia Accused of Cookie‑Stuffing After Reports Show Founders Knew

Leaked internal messages show founders knew of disputed tracking features that independent testing says could claim affiliate commissions without user action.

Overview

  • Independent researcher Ben Edelman published a technical analysis in early July that found Phia’s browser extension could place affiliate tracking or generate affiliate clicks without a shopper taking the matching actions.
  • Bloomberg reporting backed by internal Slack messages and code reviews says Phia’s founders were aware of the disputed functionality as early as December 2025, contradicting the company’s initial claim that the issue was a recent software bug.
  • Phia says it disabled the disputed features on July 7, is reviewing past transactions, has begun issuing reversals to partners, and is hiring compliance staff to address the failings.
  • Affiliate network Impact.com suspended Phia from its marketplace and partners have been reviewing ties, while internal charts reviewed by reporters show Phia’s average daily revenue fell sharply after the features were turned off.
  • There are no public criminal charges as of mid‑August 2026, but experts note cookie‑stuffing can trigger civil claims, partner clawbacks and regulatory scrutiny and that criminal prosecution would require proof of intent to defraud.