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<div class="shell hero-inner">
<div class="site-nav">
<a class="brand" href="/" aria-label="Truenote home"><span class="brand-mark" aria-hidden="true">T</span><span>Truenote</span></a>
<div class="site-links"><a href="/security/pci/">PCI safeguards</a><a href="/about/">About</a><a href="/">Sign in</a></div>
</div>
<p class="eyebrow">Truenote security architecture</p>
<h1>Security controls Truenote has today</h1>
<p class="lede">Repository-tested safeguards for content, access, retrieval, AI data handling, answer integrity, browser protection, audit, and secure delivery.</p>
<div class="hero-meta"><span>Current as of July 17, 2026</span><span>Verified work only</span><span>Evidence scope shown</span></div>
</div>
</header>
<nav aria-label="Document sections">
<div class="shell"><a href="#overview">Overview</a><a href="#safeguards">Safeguards</a><a href="#checks">Passed checks</a><a href="#source">Source and reporting</a></div>
</nav>
<main class="shell">
<section id="overview">
<div class="callout">
<div><h2>Layered controls, tested at their boundaries</h2><p>Truenote applies server-side access limits before retrieval, screens content and AI data paths, requires cited answers or refusals, protects browser mutations, and records security-sensitive activity. This page includes only safeguards that have completed repository evidence.</p></div>
<a class="button" href="/security/pci/">View PCI-focused safeguards</a>
</div>
</section>
<section id="safeguards">
<h2>Verified safeguards</h2>
<article><span class="tag verified">Verified</span><span class="grade-scope">Repository acceptance checks</span></article>
<p>“Verified” here means the named repository acceptance check passed. Each card states that evidence scope.</p>
<div class="grid">
<article class="card"><p class="number">01</p><h3>Program and clearance isolation</h3><p>Server-side filters deny cross-program and above-clearance access before protected content reaches ranking, generation, citations, or document reads.</p><span class="evidence-scope">Repository tests passed</span></article>
<article class="card"><p class="number">02</p><h3>Controlled content activation</h3><p>Source, file, EICAR, sensitive-content, lifecycle, parsing, and role checks are enforced before knowledge content becomes active.</p><span class="evidence-scope">Repository tests passed</span></article>
<article class="card"><p class="number">03</p><h3>Hybrid retrieval boundary</h3><p>Vector, full-text, typo-tolerant, reranking, and neighbor retrieval preserve authorization and lifecycle limits through the complete pipeline.</p><span class="evidence-scope">Repository tests passed</span></article>
<article class="card"><p class="number">04</p><h3>Zero Data Retention routing policy</h3><p>Approved answer routes request Zero Data Retention, deny data collection, pin one provider, disable provider fallback, and reject arbitrary routes.</p><span class="evidence-scope">Repository tests passed</span></article>
<article class="card"><p class="number">05</p><h3>Pre-provider input firewall</h3><p>Deterministic secret, payment-card, identity, phone, and network-address patterns are redacted before supported embedding, reranking, and model calls.</p><span class="evidence-scope">Boundary tests passed</span></article>
<article class="card"><p class="number">06</p><h3>Cite or refuse</h3><p>Missing, malformed, unknown, and out-of-range citations cannot produce a normal answer. Sensitive model output is refused.</p><span class="evidence-scope">Generation tests passed</span></article>
<article class="card"><p class="number">07</p><h3>Immutable citation receipts</h3><p>Ordered source snapshots preserve version and anchor context while rejecting stale, revoked, deleted, or unauthorized evidence.</p><span class="evidence-scope">Repository tests passed</span></article>
<article class="card"><p class="number">08</p><h3>Browser request defense</h3><p>Trusted same-origin mutations pass while foreign, opaque, malformed, cross-site, and sibling-origin requests are rejected. CSP restricts active content.</p><span class="evidence-scope">Browser-security tests passed</span></article>
<article class="card"><p class="number">09</p><h3>Redacted diagnostics</h3><p>Structured error handling removes credentials, complete private keys, Social Security numbers, and payment-card values from covered diagnostic paths.</p><span class="evidence-scope">Redaction tests passed</span></article>
<article class="card"><p class="number">10</p><h3>Bounded provider failure</h3><p>Provider operations use explicit deadlines, retry caps, abort propagation, and a fail-closed deadline for the complete ask path.</p><span class="evidence-scope">Failure-path tests passed</span></article>
<article class="card"><p class="number">11</p><h3>Tamper-evident audit logic</h3><p>Security events use append-only hash chaining. SIEM delivery tests cover signing, lease fencing, retries, dead-letter handling, and health reporting.</p><span class="evidence-scope">Audit-delivery tests passed</span></article>
<article class="card"><p class="number">12</p><h3>Evaluation integrity</h3><p>Evaluation tests cover retrieval, reranking, citations, refusals, faithfulness, durable recovery, cancellation, and protected held-out questions.</p><span class="evidence-scope">Evaluation tests passed</span></article>
</div>
</section>
<section id="checks">
<h2>Security delivery checks</h2>
<p>The hosted repository workflow has completed these checks successfully on merged security changes.</p>
<div class="checks">
<article class="check"><h3>Type checking and production build</h3><p>Workspace TypeScript checks and the production frontend build completed successfully.</p></article>
<article class="check"><h3>Automated test suites</h3><p>Frontend, API, and security-script suites completed successfully.</p></article>
<article class="check"><h3>Secret scanning</h3><p>The hosted pull-request secret scan completed successfully.</p></article>
<article class="check"><h3>Dependency audit and SBOM</h3><p>The production dependency audit and CycloneDX software bill of materials step completed successfully.</p></article>
<article class="check"><h3>CodeQL analysis</h3><p>Hosted CodeQL analysis and the external alert gate completed successfully.</p></article>
<article class="check"><h3>Security evidence integrity</h3><p>Machine checks validated evidence links, identifiers, hashes, and required security records.</p></article>
</div>
</section>
<section id="source">
<h2>Source and vulnerability reporting</h2>
<div class="source-panel">
<div><h3>Inspect the implementation or report privately</h3><p>The public repository contains the implementation, tests, security policy, and evidence records behind these claims. Suspected vulnerabilities can be submitted through GitHub’s private advisory intake.</p></div>
<div class="actions"><a class="button" href="https://github.com/ryanportfolio/Truenote" target="_blank" rel="noreferrer">View source</a><a class="button secondary" href="https://github.com/ryanportfolio/Truenote/security/advisories/new" target="_blank" rel="noreferrer">Report privately</a></div>
</div>
</section>
<section aria-label="Evidence boundary">
<div class="boundary"><strong>Evidence boundary:</strong> repository tests verify the code paths and conditions they exercise. This page is not a certification, authorization, legal opinion, independent assessment, or deployed-configuration attestation.</div>
</section>
</main>
<footer><div class="shell">Truenote security capabilities. Public claims are limited to the evidence scope stated on this page.</div></footer>
</body>
</html>