{
  "slug": "x41-d-sec",
  "name": "X41 D-Sec",
  "url": "https://x41-dsec.de",
  "hq": "Aachen, Germany",
  "focus": "Source-code audits of open-source security and cryptographic software",
  "summary": "X41 D-Sec performs source-code audits of open-source software, including cryptographic libraries, often funded by open-source security programs, and publishes its reports.",
  "pqc_services": [
    "Source-code audits of cryptographic libraries and protocol implementations",
    "Public audit reports"
  ],
  "evidence": [
    [
      "X41 published audits",
      "https://x41-dsec.de/security/research/"
    ]
  ],
  "rank": 12,
  "page": "https://pqaudit.org/auditors/x41-d-sec/",
  "updated": "2026-09-12"
}