{
  "slug": "least-authority",
  "category": "security-audit-firms",
  "name": "Least Authority",
  "description": "Berlin security consultancy that audits cryptographic protocols, blockchain systems, wallets and privacy software, and develops open-source privacy tools.",
  "website": "https://leastauthority.com",
  "license": null,
  "platforms": [],
  "jurisdiction": {
    "code": "DE",
    "name": "Germany",
    "eyes": "Fourteen Eyes",
    "eu": true,
    "gdpr": true,
    "cloud_act": null
  },
  "pick": false,
  "pick_reason": null,
  "disclosure": null,
  "grade": "A",
  "score": 93,
  "coverage": 100,
  "summary": "Least Authority scores 93 out of 100 (grade A) on the security audit firms criteria. It meets 3 of 4 criteria: publishes full reports, audits open-source projects and no trackers on website. It partly meets public research. It is based in Germany: Fourteen Eyes member; EU member (GDPR). Automated tests: SSL Labs grade A+ and Mozilla HTTP Observatory grade B.",
  "url": "https://privacyratings.com/security-audit-firms/least-authority/",
  "markdown": "https://privacyratings.com/security-audit-firms/least-authority/index.md",
  "answers": {
    "public_reports": {
      "title": "Publishes full reports",
      "weight": 3,
      "answer": "yes",
      "evidence": "https://leastauthority.com/security-consulting/published-audits/",
      "note": "The published audits page lists many full client reports each year."
    },
    "open_source_work": {
      "title": "Audits open-source projects",
      "weight": 2,
      "answer": "yes",
      "evidence": "https://leastauthority.com/blog/audit-of-zcash-nu6-1-network-upgrade/",
      "note": "Published audits cover many open-source projects, such as Zcash Zebra for the Zcash Foundation, Holochain and the White Noise Marmot protocol."
    },
    "public_research": {
      "title": "Public research",
      "weight": 1,
      "answer": "partial",
      "evidence": "https://leastauthority.com/community-matters/moonmath-manual/",
      "note": "Publishes the MoonMath Manual on zk-SNARKs and some open-source privacy software, but few advisories."
    },
    "no_trackers": {
      "title": "No trackers on website",
      "weight": 1,
      "answer": "yes",
      "evidence": "https://leastauthority.com/privacy-policy/",
      "note": "No third-party trackers. Self-hosted Matomo runs with cookies disabled and stores only a masked IP address."
    }
  },
  "tests": {
    "ssllabs": "A+",
    "observatory": "B",
    "internetnl_web": null,
    "internetnl_mail": null,
    "trackers": [],
    "tested_at": "2026-10-01T07:07:14.219Z"
  },
  "last_modified": "2026-10-01T07:44:20Z"
}