Harbor Data / 04 / PRACTICE GUIDE

Secure sharing, SaaS and third-party data flows

Do not confuse an encrypted connection with permission to share. Review class, purpose, recipients and external-copy accountability in the local data passport.

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Original AI-assisted SecNet educational content; examples are fictional. Not a source organization publication or endorsement. Sources checked: 2026-10-21.

Local data passport desk

Use synthetic metadata only. Input is neither transmitted nor saved to an account. Include no actual file content, secrets or personal data.

Synthetic data-dossier JSON

{
  "version": 1,
  "caseId": "harbor-data",
  "asOf": "2026-10-21T09:00:00Z",
  "records": [
    {
      "id": "public-notice",
      "owner": "Fictional data owner",
      "classification": "public",
      "purposeRef": "purpose-01",
      "destination": "public",
      "recipientApproved": false,
      "encrypted": false,
      "reviewRef": "review-01",
      "retainUntil": "2026-12-01T00:00:00Z",
      "legalHold": false
    },
    {
      "id": "internal-plan",
      "owner": "Fictional data owner",
      "classification": "internal",
      "purposeRef": "purpose-02",
      "destination": "partner",
      "recipientApproved": true,
      "encrypted": true,
      "reviewRef": "review-02",
      "retainUntil": "2026-12-01T00:00:00Z",
      "legalHold": false
    },
    {
      "id": "partner-contract",
      "owner": "Fictional data owner",
      "classification": "confidential",
      "purposeRef": "purpose-03",
      "destination": "partner",
      "recipientApproved": true,
      "encrypted": true,
      "reviewRef": "review-03",
      "retainUntil": "2026-10-01T00:00:00Z",
      "legalHold": false
    },
    {
      "id": "case-evidence",
      "owner": "Fictional data owner",
      "classification": "restricted",
      "purposeRef": "purpose-04",
      "destination": "public",
      "recipientApproved": false,
      "encrypted": false,
      "reviewRef": "review-04",
      "retainUntil": "2026-10-01T00:00:00Z",
      "legalHold": true
    },
    {
      "id": "working-copy",
      "owner": "Fictional data owner",
      "classification": "confidential",
      "purposeRef": "",
      "destination": "internal",
      "recipientApproved": true,
      "encrypted": true,
      "reviewRef": "",
      "retainUntil": "2026-10-01T00:00:00Z",
      "legalHold": false
    }
  ]
}

Classes, encryption and references are assertions; content is not scanned and actual approval is not verified. A fixed UTC time is used. Hold and retention outcomes are independent of sharing. The tool performs no DLP enforcement, legal decision, anonymization or deletion.

EVIDENCE REVIEW DESK

Move from observations to decisions.

Code here is a local policy model with no target connection. Passing model cases are not security approval or device tests.

The link is ready / Incomplete decision

Inspect an incomplete decision based on record existence or another positive signal. Consider denial cases alongside permitted use.

s => s.linkCreated === true

A link does not establish correct recipients or necessary scope. Do not treat sharing as approved without limiting recipient, purpose, duration and data fields.

Choices and outputs last only on this open page; they do not update account progress, career status, points or certificates.

01 / EXPLANATION

Recipient and purpose boundary

Harbor needs to send a contract to a specific partner team. Creating a link does not establish the recipient’s identity or authority. Specify class, necessary fields, purpose, recipients and duration together. Public links and identity-scoped sharing are different access models. Encryption alone does not resolve disclosure to the wrong recipient. Record where the shared copy will remain and who owns it. This exercise creates no actual link and sends no document; it compares declared metadata decisions for fictional records.

02 / EXPLANATION

Read the local sharing profile

This teaching profile requires purpose and review references for every share. Public records may reach different destinations when other conditions hold. Internal records stay internal; restricted records stay internal and require confirmed encryption. Confidential records may reach approved partners with declared encryption, but not public destinations. These are fictional Harbor rules, not a universal DLP standard. Reference presence verifies no approval, and an encrypted flag verifies no cryptography. The local tool does not inspect content and cannot discover that a declared class is wrong.

03 / EXPLANATION

SaaS chain and exit planning

A SaaS contract does not alone establish subprocessors, location, support access, backups and exit scope. Authorized legal, procurement and security teams assess real obligations together. This package makes no cross-border legal or automatic compliance decision; the existing regulatory guides cover that context separately. Harbor records service/data ownership, external copies and required exit evidence. A provider’s general certification does not establish business approval of this particular flow or every deletion outcome. Review scope and responsibilities rather than substituting a contract label for evidence.

04 / EXPLANATION

Revoking a link does not recall every copy

Removing a link may not erase downloads, screenshots or derivatives in another system. Authorized teams track access, sessions, copies and contractual return requirements separately. Harbor places the applied target operation beside its verified outcome. If the actual result cannot be confirmed, record residual risk and follow-up ownership. The local model evaluates only the fictional sharing rules; it contacts no recipient and recalls no data. Closing a share should not rely on a link counter while ignoring copies and unresolved effects outside that access boundary.

Build the evidence yourself.

Blank workpapers are not completed tests. Fill them in your authorized environment without secrets or real personal data.

Data passport and copy scopeMarkdown · EN Sharing and retention review planMarkdown · EN Observation, copy and evidence gapMarkdown · EN Authorized decision and outcome verificationMarkdown · EN

Full guide with code, outputs and reasoning ↓

Primary references

Explanations are authored by SecNet. References support method and platform context; verify current editions and organizational policy for real use.