The full text of this article could not be retrieved — the content supplied consists only of PC Gamer's website navigation, membership and newsletter sign-up boilerplate, with no actual article body. Based solely on the headline, the piece appears to report on warnings from an AI researcher that self-replicating "AI worms" could pose a realistic threat to Copilot+ PCs, Microsoft's new line of AI-enhanced Windows computers, though no further detail is available to confirm or elaborate on this.

No specific details, figures, researcher names or technical explanations were present in the retrieved text, so a substantive summary cannot be provided. To get an accurate summary, the article would need to be re-fetched or accessed directly via the URL provided.