{
  "slug": "quarkslab",
  "category": "security-audit-firms",
  "name": "Quarkslab",
  "description": "French security research company that performs audits, reverse engineering and vulnerability research, and develops open-source tools such as LIEF and Triton.",
  "website": "https://www.quarkslab.com",
  "license": null,
  "platforms": [],
  "jurisdiction": {
    "code": "FR",
    "name": "France",
    "eyes": "Nine Eyes",
    "eu": true,
    "gdpr": true,
    "cloud_act": null
  },
  "pick": false,
  "pick_reason": null,
  "disclosure": null,
  "grade": "B",
  "score": 86,
  "coverage": 100,
  "summary": "Quarkslab scores 86 out of 100 (grade B) on the security audit firms criteria. It meets 3 of 4 criteria: publishes full reports, audits open-source projects and public research. It does not meet no trackers on website. It is based in France: Nine Eyes member; EU member (GDPR). Automated tests: SSL Labs grade B and Mozilla HTTP Observatory grade D-.",
  "url": "https://privacyratings.com/security-audit-firms/quarkslab/",
  "markdown": "https://privacyratings.com/security-audit-firms/quarkslab/index.md",
  "answers": {
    "public_reports": {
      "title": "Publishes full reports",
      "weight": 3,
      "answer": "yes",
      "evidence": "https://blog.quarkslab.com/tag/audit.html",
      "note": "The blog publishes audit write-ups with full reports for many clients, such as PHP, Bitcoin Core, KubeVirt and Paramiko."
    },
    "open_source_work": {
      "title": "Audits open-source projects",
      "weight": 2,
      "answer": "yes",
      "evidence": "https://blog.quarkslab.com/security-audit-of-php-src.html",
      "note": "Regularly audits open-source projects, many through OSTIF, including php-src, Bitcoin Core, KubeVirt, Notary Project and Paramiko."
    },
    "public_research": {
      "title": "Public research",
      "weight": 1,
      "answer": "yes",
      "evidence": "https://blog.quarkslab.com/",
      "note": "Publishes a regular research blog, advisories and open-source tools."
    },
    "no_trackers": {
      "title": "No trackers on website",
      "weight": 1,
      "answer": "no",
      "evidence": null,
      "note": "The home page loads Google Analytics and Google Tag Manager."
    }
  },
  "tests": {
    "ssllabs": "B",
    "observatory": "D-",
    "internetnl_web": null,
    "internetnl_mail": null,
    "trackers": [
      {
        "name": "Google Analytics",
        "host": "inline code",
        "effect": "no"
      },
      {
        "name": "Google Fonts",
        "host": "fonts.googleapis.com",
        "effect": "none"
      },
      {
        "name": "Google Tag Manager",
        "host": "www.googletagmanager.com",
        "effect": "no"
      }
    ],
    "tested_at": "2026-10-01T07:07:14.324Z"
  },
  "last_modified": "2026-10-01T07:44:20Z"
}