By Matt G. Southern
Publication Date: 2026-03-10 16:57:00
A federal judge has granted Amazon a preliminary injunction barring Perplexity AI from using its Comet browser agents to access password-protected Amazon accounts and systems.
U.S. District Judge Maxine M. Chesney issued the order in San Francisco federal court, finding that Amazon is likely to succeed on the merits of its claims. The preliminary injunction also bars Perplexity from creating or using accounts for the purpose of AI agent access and orders the company to destroy Amazon data it collected through Comet.
Amazon sued Perplexity in November, alleging the startup committed computer fraud by disguising Comet as a standard Chrome browser and refusing to identify it as an AI agent while making purchases.
What The Court Ordered
The preliminary injunction bars Perplexity from using Comet or any other AI agent to access password-protected parts of Amazon’s systems.
In the order, Judge Chesney wrote that Amazon presented “strong evidence” that Perplexity, through its Comet browser, accessed Amazon user accounts “with the Amazon user’s permission but without authorization by Amazon.”
The court treated user consent and platform authorization as two separate requirements at this stage of the case. A shopper giving Comet their Amazon login credentials didn’t automatically give Comet the right to use them on Amazon’s platform.
Chesney found Amazon satisfied all four legal requirements for a preliminary injunction, including that Amazon would suffer…
