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Compliance

NVIDIA NIM in Japan

Structured issue-spotting for deploying NVIDIA NIM in Japan, read against the rules for that jurisdiction.

Source
Rules engine over a generic brief — no anchored quote on this page
Verified
Evidence not verified
Confidence
Low

Structured issue-spotting to support your own review — not legal advice. Verify against the cited primary sources and your counsel.

01What this reading assumes

Jurisdiction
Japan
Principal framework
Act on the Protection of Personal Information (個人情報の保護に関する法律, Act No. 57 of 2003). Requires the purpose of use to be specified and adhered to, restricts acquisition and third-party provision, sets security control measures, and imposes duties when personal data is entrusted to a contractor — which is what using a model provider usually is. Transfers to a third party in a foreign country are subject to their own regime, with an information duty to the individual. The e-Gov entry currently shows unenforced provisions pending, so check which version applies before relying on an article number.
Delivery assessed
Self-hosted
Data leaves the network
no
Vendor home jurisdiction
United States
Verified vendor positions
none — every vendor position below is a question, not an assurance
Rules evaluated
32
Rules fired
11

Assumptions about use

  • An internal deployment used by employees, not a public-facing product.
  • A person reads the output before acting on it — but that is not recorded, so the engine reports it as a gap rather than assuming it.
  • No significant automated decision is taken about a person by the system alone.

02Issues to work through

11 · 0 anchored

Cross Cutting

OUR RECOMMENDATIONSeverity HIGHsecurity-baseline

Self-hosting moves the security obligation to you

RECOMMENDATION

Keeping data on your own hardware answers the transfer question and creates an operations question. Patching, backups, key management, monitoring and incident response are now yours, and an unpatched inference server on the office network is a worse outcome than a well-run vendor.

Required checks
  • Name the person responsible for patching each component, and the cadence.
  • Confirm backups exist, are encrypted, and have been restored at least once.
  • Confirm there is an incident response path that includes this system.
Technical controls
  • Encrypt at rest and in transit, including between the application and the inference server.
  • Centralise authentication through the existing identity provider rather than local accounts.
  • Keep an audit log of who queried what, and protect it from the people it records.
  • Subscribe to security advisories for each component and track upgrade lag.
OUR RECOMMENDATIONSeverity MEDIUMauditability-practice

Being able to reconstruct a decision months later

RECOMMENDATION

The question that arrives after a complaint is what the system was shown and what it produced on a particular day. Models change, prompts change, and indexes are rebuilt, so the answer has to be recorded at the time. Without it, the only available response is that the output cannot be reproduced.

Required checks
  • Decide what is recorded per interaction: model and version, prompt template version, retrieved document ids, output, reviewer and outcome.
  • Set how long those records are kept, balanced against the retention duties that also apply to them.
Vendor questions
  • Does the vendor pin model versions, and how much notice is given before a model is retired or changed?
Technical controls
  • Version prompt templates in source control and log the version used.
  • Log the model identifier and version returned by the provider, not the one you requested.
OUR RECOMMENDATIONSeverity MEDIUMconfidentiality-duties

Confidentiality duties bind independently of data protection law

RECOMMENDATION

Material can be entirely free of personal data and still be the material a contract stops you disclosing. Client retainers, non-disclosure agreements, supplier contracts and common-law duties are the usual sources, and several of them require consent before a third party processes the material at all — which a model API call is.

Required checks
  • Review the confidentiality clauses in the contracts covering the material going into the system.
  • Identify any contract requiring notice or consent before a subcontractor processes the material.
  • Decide whether the deployment needs a confidentiality carve-out negotiated into new contracts.
Vendor questions
  • Will the vendor accept a confidentiality undertaking beyond its standard terms?
  • Which staff at the vendor can access customer content, under what controls?
Technical controls
  • Segregate the most sensitive corpora into an index that the general assistant cannot reach.

Human review required — take this to your counsel

OUR RECOMMENDATIONSeverity MEDIUMhuman-oversight-practice

We were not told whether a person reviews the output

RECOMMENDATION

Where output influences a decision about a person, the reviewer has to be able to disagree with it. That needs three things a rubber-stamp review lacks: enough information to judge, enough time to judge, and an override that is used often enough to be real. Design it before the volume makes it impossible.

Required checks
  • Name the role that reviews the output and what they see when they do.
  • Decide what evidence is retained about each review, so the practice can be shown to exist.
  • Set a threshold below which the system must not act without review.
Vendor questions
  • Does the product expose the retrieved context and the confidence behind a suggestion, or only the answer?
Technical controls
  • Show the reviewer the retrieved sources next to the suggestion, not the suggestion alone.
  • Record the reviewer’s decision, including overrides, as part of the audit trail.

Human review required — take this to your counsel

OUR RECOMMENDATIONSeverity MEDIUMlogging-practice

An AI deployment creates new copies of the data

RECOMMENDATION

Vector indexes, prompt logs, completion caches, evaluation datasets, fine-tuning checkpoints and backups are all copies of the source material in places the existing retention schedule does not mention. Deletion requests are the moment this is discovered, because deleting the source document does not delete its embedding.

Required checks
  • List every store the deployment creates and add each to the retention schedule.
  • Establish how a deletion request propagates to the index, the caches and the logs.
  • Establish how long backups keep material that has been deleted from the live system.
Vendor questions
  • What does the vendor retain, where, and for how long after we delete our copy?
Technical controls
  • Store the source document id with every embedding so deletion can cascade.
  • Set time-to-live on prompt and completion logs rather than relying on manual cleanup.
OUR RECOMMENDATIONSeverity MEDIUMmodel-access-control

Who can reach the model, the index and the weights

RECOMMENDATION

A self-hosted stack has three access surfaces that are easy to leave open: the inference endpoint, the vector index, and the weights on disk. Retrieval also carries an authorisation problem an ordinary application does not have — the index must not return a document to someone who could not open it in the source system.

Required checks
  • Confirm the inference endpoint is not reachable from outside the network and requires authentication.
  • Confirm retrieval filters by the requesting user’s permissions, not only by relevance.
  • Confirm who can read the model files and the index volume at the operating-system level.
Technical controls
  • Bind the inference server to a private interface and put an authenticating proxy in front of it.
  • Carry document-level access control into the index and enforce it at query time.
  • Encrypt the volume holding the weights and the index, and restrict it to the service account.
  • Rotate API keys and keep them out of client-side code and container images.
OUR RECOMMENDATIONSeverity MEDIUMprompt-handling

What ends up in a prompt, and where it goes next

RECOMMENDATION

Even with inference inside the network, prompts and retrieved context accumulate in logs, traces and caches, and system prompts can often be extracted from the output. The leak path is internal rather than external, but it is still a copy of the source material in a new place.

Required checks
  • Write down which categories of information may be entered into a prompt, and tell people.
  • Establish what the system prompt contains and whether disclosing it would matter.
  • Establish which shadow tools staff are already using; the policy has to name the permitted ones.
Vendor questions
  • Are prompts and completions retained, for how long, and can retention be set to zero?
  • Are prompts used for abuse monitoring, and if so who can read them and for how long?
Technical controls
  • Redact or block high-risk patterns before the prompt leaves the application.
  • Keep prompt and completion logs out of general-purpose observability tools.
  • Set an explicit retention period on prompt logs and enforce it.

Japan

RECOMMENDED PRACTICESeverity MEDIUMjp-ppc-generative-ai-alert

The Commission has already said what it expects about prompts

ASSESSMENT

The Personal Information Protection Commission announced a cautionary notice on the use of generative AI services, published as an attachment to the announcement, and issued a separate notice to OpenAI, L.L.C. and OpenAI OpCo, LLC as the developers of ChatGPT. The instructions on what may be entered into a prompt are in the attachment rather than on the announcement page, so read the attachment before writing a staff policy.

Required checks
  • Write the internal rule on what may be entered into a prompt, in concrete terms.
  • Check that the sanctioned tool covers the work people are currently doing elsewhere.
Technical controls
  • Redact or block obvious personal identifiers before the prompt leaves the application.
LEGAL REQUIREMENTSeverity MEDIUMjp-appi

The purpose of use has to be specified and then adhered to

ASSESSMENT

The APPI requires a business handling personal information to specify the purpose of use as far as possible and not to exceed it without consent. A purpose written for a document management system rarely covers indexing that content for a generative assistant, so extending the purpose — and notifying or publicising the change — is a specific step rather than an implicit one.

Required checks
  • Retrieve the current purpose-of-use statement for the data in scope.
  • Decide whether the AI use is within it, within a reasonably related change, or beyond it.
  • Where it is beyond, plan the notification or the consent before indexing anything.

Human review required — take this to your counsel

RECOMMENDED PRACTICESeverity LOWjp-ai-guidelines-for-business

AI Guidelines for Business are the governance benchmark, and there is no AI penalty regime

ASSESSMENT

The AI Guidelines for Business are at version 1.2, compiled by the MIC and METI review panel. The AI Promotion Act of 2025 sits above them as a promotion statute: it establishes national policy and an AI Strategy Headquarters in the Cabinet, and imposes no obligations or penalties on a company deploying AI.

Required checks
  • Map your governance against the current version of the guidelines rather than an older one.
  • Where a customer asks how the deployment is governed, answer in the guidelines’ vocabulary.
Vendor questions
  • Do you publish a statement of alignment with the AI Guidelines for Business, and at which version?
OUR RECOMMENDATIONSeverity INFOjp-appi-2026-amendment

The APPI is mid-amendment, with no commencement date yet

RECOMMENDATION

An amending act was promulgated on 17 July 2026 and commences on a date to be fixed by Cabinet Order within two years, with earlier tranches for some provisions. The Commission has published its implementation programme and is still preparing the orders, rules and guidelines. A design decision with a multi-year life should assume the rules will move.

Required checks
  • Note the amendment in the deployment’s review schedule rather than treating today’s text as final.

Structured issue-spotting to support your own review — not legal advice. Verify against the cited primary sources and your counsel.


03What this reading does not know

3
  • Whether any of the data falls into a special or sensitive category.
  • Whether any material is covered by legal professional privilege.
  • Whether a person reviews the output before it is acted on.

04Instruments these issues point at

5

All instruments recorded for Japan


05Vendor documents being watched

4

06Ask about your own deployment

This page reads the rules against a generic organisation. Your size, industry, data and existing contracts change which of these issues matter and which fall away.

  1. 01What do we need to check before using NVIDIA NIM in Japan?