There's a new way to break RSA security that only requires you to occupy the entire infrastructure of Cloudflare for a day to break a single Privacy Pass key.

https://arstechnica.com/security/2026/09/theres-a-new-...

Generic RSA is still safe; this is for one particular use case.
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@Aether they haven't linked to the paper itself. Any chance you found it?

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