Cure53: post-quantum cryptography audit services
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Cure53 audits open-source software, browsers, and messaging clients, and publishes its reports. It is frequently used for end-to-end reviews of applications that embed post-quantum libraries.

Website: https://cure53.de
Headquarters: Berlin, Germany
Focus: Penetration testing and code audits of open-source and web software
Post-quantum services: Application-level audits of software that integrates post-quantum libraries | Public audit reports
Evidence: https://cure53.de/#publications

Source page: https://pqaudit.org/auditors/cure53/
Compiled by: PQC Audit Index editors (https://pqaudit.org/about/)
Last reviewed: 2026-09-12