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Suspicious Polyfill login prompts pop up on Toshiba, Muji websites

Tech giant Toshiba and mega-retailer Muji warned visitors that suspicious sign-in screens popping up on their websites could collect credentials.

Grace Ops

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Curated Jun 05, 2026 by Aidan Duffy, Threat intelligence editor, AHackaday./Methodology/Sources verified.

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Grounded in this brief only — Suspicious Polyfill login prompts pop up on Toshiba, Muji websites. Press ⌘K any time.

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cross-platform summaryLive chatter is accelerating; analysts are actively validating impact.