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Privacy and data protection for deployers

Reference

What Nyxus holds, what it never holds, and the guidance a DPIA will ask for.

This platform observes employee activity: which AI tools people use, on which devices, with which account domains. In most jurisdictions that makes deploying it a form of workplace monitoring, and in GDPR terms it will usually warrant a Data Protection Impact Assessment (DPIA) before rollout. This document is a starting checklist, not legal advice. Involve whoever owns data protection in your organisation before you deploy.

What this platform collects, and what it deliberately does not

Collected per finding: tool name, surface, OS, device identifier, username, account domain, an evidence path, severity, timestamp.

Deliberately not collected: message or page content, browsing history beyond matches against the registry of known AI domains, keystrokes, file contents, credentials or tokens belonging to users.

How usernames are handled depends on where the finding came from, and the two rules are different.

Cloud and browser findings follow the account. For sign-ins on an approved corporate domain the username, meaning the local part of the work email, is recorded in the user field, because that identity is already known to IT. For personal-domain accounts the field is left empty and only the domain is kept.

Endpoint collectors record the device's console account name whichever account the tool is signed into, because that name is what the MDM already reports for the device, and the finding is about a managed machine rather than an email address. A personal-account finding from a collector therefore carries a username and a personal domain together. That is deliberate: the username identifies the machine's owner, not the personal account.

The design intent is to answer "is a managed device using an unmanaged AI account" with the minimum identifiable data that still supports a conversation with the right person.

The paste guard inspects content locally

The browser extension's paste guard scans text at the moment of paste or drop into a known AI tool. That inspection happens on the device, inside the page, and your DPIA should name it plainly rather than let "no content collected" imply "no content touched". What keeps it proportionate:

  • The pasted text is never transmitted, stored, or included in any finding, truncated or otherwise. Reports carry the detector id (e.g. payment_card), the action taken, the tool, the device and a timestamp.

  • The "overridden" action records that a person chose to proceed past a warning. Tell staff this is recorded: it is the one paste-guard datum about a decision rather than a clipboard.

  • What is scanned for is reviewable and centrally controlled: the detector list and its deliberate exclusions are open in extension/src/guard.js, and the classification markings come from your own document classification policy via managed configuration.

  • Typed content, clipboard images and file uploads are not scanned.

DPIA checklist

Work through these before deployment. Most map directly onto ICO / GDPR Article 35 expectations; adapt to your jurisdiction.

Purpose and lawful basis

  • State the purpose in one sentence. The intended one: identify
    unmanaged AI tool usage on managed devices to bring it under
    appropriate licensing, security and data governance.

  • Identify your lawful basis (typically legitimate interests for
    security monitoring of corporate devices). Document the balancing
    test: the data is minimal, and the more intrusive alternatives
    (server-side content inspection, proxy interception) are avoided;
    the paste guard's inspection is client-side only and reports no
    content.

  • Confirm scope is corporate-managed devices and corporate cloud
    tenants only. This tool has no visibility into personal devices,
    and you should keep it that way.

Transparency

  • Tell staff before rollout. An acceptable-use or monitoring policy
    that names the platform, what it collects, what it does not, and
    what happens with findings. Silent deployment of monitoring is both
    a legal risk and a trust cost that outlasts any incident.

  • Make the registry reviewable internally. People should be able to
    see what counts as an AI tool.

Data minimisation and retention

  • Set retention on your log store and stick to it. Findings older
    than your stated window should age out; the dashboards here default
    to 7-day views for a reason.

  • Do not extend the finding schema with content-bearing fields.

Access and use

  • Scope dashboard and log access to the people who act on findings.
    A finding names a person; the audience for that is small.

  • Decide and document the response path before the first finding: who
    talks to whom, and with what intent. This platform's findings are
    licensing and governance conversations, not disciplinary evidence.
    If your organisation intends to use them for discipline, that
    materially changes the DPIA and the transparency obligations.

  • Alerting routes findings to a channel. Treat that channel's
    membership as an access control.

Accuracy and challenge

  • Have a route for someone to say "that finding is wrong or
    explained". Test accounts, shared machines and IT staff doing their
    jobs will all appear; the platform reports signals, not conclusions.

Security of the monitoring data itself

  • The log store is a map of who uses what on which machine. Apply
    the security guidance: restrict the Loki tenant or equivalent,
    protect the receiver token, TLS on ingest.

A note on proportionality

The strongest privacy argument for this design over the alternatives is what it does not do. It does not intercept traffic, inspect content, or inventory general browsing. It matches known AI tool identifiers and reads account domains from local tool configuration. If a regulator or works council asks why this approach, that is the answer: it is the least intrusive design that still closes the visibility gap.

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