Plain-English insight · Enterprise AI defence

Should staff put customer data into ChatGPT, Copilot or Claude?

AI can help staff draft emails, summarise documents and handle customer enquiries. But what happens when they use their personal accounts? This guide explains the risks, the protections business accounts offer, and the rules to set for what staff may upload.

Written for owners and managers. No technical background needed.

In December 2023, Victoria's Department of Families, Fairness and Housing reported a privacy incident involving a child-protection worker using ChatGPT to draft a court report. The Victorian privacy regulator later found that the worker had entered names and risk-assessment information into the tool. The report also contained inaccurate information that understated risks to the child. The department accepted the findings and received a compliance notice requiring remedial action.[1, 2]

For a business owner, this raises two questions: what customer data are staff giving AI, and what are they doing with its answers?

This is analysis of Australian privacy requirements and provider documentation, not legal advice. Product information was checked on 13 November 2026; today's products differ from those in the 2023 incident.

Should staff use personal AI accounts for work?

My recommendation is to require company-provided, managed AI accounts for work and put that rule in writing. Give staff an approved tool and examples of permitted use, so they can get useful work done within clear limits.

A paid personal subscription is still a personal account. Your business needs to control access, settings and what happens when an employee leaves. A staff member turning off model training does not establish those controls.

A starting policy to adapt: Use only company-approved AI tools and work accounts for business tasks. Do not enter work information into personal AI accounts. Follow the approved data categories below, and obtain approval before uploading customer records. Check AI-generated content before using it, and report accidental uploads or sharing immediately to the designated manager.

What protection does a business AI account provide?

Business accounts can provide organisational controls and stronger contractual protections. They still need configuring, and a promise not to train models on your information does not mean the provider never stores it.

ChatGPT Business and Enterprise exclude business content from model training by default. Microsoft says Copilot Chat prompts and responses under work-account protection do not train foundation models. Claude's commercial services also exclude content by default, with permission and feedback exceptions.[3, 4, 5] Check that staff actually select the work account or workspace.

Separate three questions: training asks whether information improves models; retention asks how long it remains stored; access asks who or what can retrieve it. Chat history, provider access and organisational audit records may still exist when training is excluded.[6, 4]

What is zero data retention, and can my business get it?

Zero data retention (ZDR) is an arrangement under which a provider does not retain the prompts and responses covered by that arrangement, subject to its exceptions. The service still processes the information to answer; coverage depends on the product, model, features and agreement.

ZDR differs from switching off training or deleting chats after a set period. For example, ChatGPT Temporary Chat excludes conversations from training but may retain them for up to 30 days for safety.[7]

Retention options to ask about, checked 13 November 2026
ProviderWhat is available?What should the owner do?
OpenAIChatGPT Business and Enterprise administrators can control retention.[6] Separately, approved customers can obtain ZDR for eligible API use: the interface through which software connects to AI. Some features still store information.[8]Have your administrator set chat retention. For an API-based business tool, ask its supplier to confirm ZDR eligibility, configuration and any copies it keeps. Buying ChatGPT does not itself enable API ZDR.
AnthropicApproved ZDR arrangements cover eligible API use and Claude Code Enterprise, with legal and safety exceptions. Some models have separate retention requirements. Ordinary Claude Enterprise chat offers custom retention, with a 30-day minimum.[9, 10, 11]Enterprise owners can configure retention under “Organization settings → Data and Privacy”. Set project retention too: it governs chats inside projects.[11] Ask sales separately about ZDR; do not assume a Team or Enterprise subscription includes it.
MicrosoftMicrosoft Purview provides retention and deletion policies for Copilot prompts and responses. Deletion takes time; legal holds and other retention requirements can preserve records.[12]Ask your Microsoft administrator which controls your licence supports and to configure them. Scheduled deletion is different from ZDR.

Get written confirmation of coverage for chats, uploads, saved memories and connected services. Ask what safety records or account metadata remain, which exceptions apply, and whether your own software stores copies. ZDR cannot fix excessive file permissions, a stolen staff login, or an employee sharing an answer with the wrong person.

What data should staff be allowed to enter?

Start with public business material and invented examples in approved work tools. Require approval for identifiable customer information, and keep highly sensitive records and access secrets out of routine chat. The table below is my suggested starting policy, not a universal legal classification.

A starting data policy for general-purpose AI chat
RuleExamplesStaff action
Allowed in approved work toolsYour published product descriptions, invented customer scenarios, aggregate figures that cannot identify individuals.Check for confidential details or identifiable people before uploading.
Approval requiredCustomer names, contact details, order information, complaint extracts, confidential commercial documents.Use only the fields needed for a specifically approved task, account and workflow.
Keep out of routine chatHealth and personnel records, identity documents, complete customer databases, detailed financial records, legally privileged material.Use a separately assessed system and process if the task requires this information.
Never paste access secretsPasswords, one-time login codes, private keys and payment-card security codes.Keep these in the systems designed to handle them.

For a hypothetical payment reminder, ask for a template with placeholders, then add the real name and amount in your own system. Remove identifying details before uploading; asking the chatbot to anonymise the original gives it the information first. Removing names alone may leave people identifiable from the remaining details.

What should I configure in the company account?

Assign an owner to configure and review the service before staff use it with customer information. Treat account protection, stored data, connected apps and output checking as separate controls.

  1. Manage staff access. Give each person a work login, require multi-factor authentication, restrict administrator rights and remove access when they leave.
  2. Check training and feedback. Confirm the business terms apply. Disable optional data sharing or feedback that permits content reuse where available; explain the remaining rules to staff.
  3. Set retention deliberately. Choose the shortest period consistent with business and legal needs. Check uploads, projects and saved memories separately. Confirm ZDR in writing where required.
  4. Limit sharing and connections. Restrict public links and unnecessary apps. Review permissions before connecting mailboxes or drives; web search and external agents can have different data-handling terms.[13]
  5. Check before acting. Require a person to verify facts and recipients before sending customer messages or making decisions. Storage controls would not have corrected the inaccurate court report in the opening case.
  6. Keep evidence and a response route. Record approved uses, settings, terms and review dates. Name someone to receive incident reports, contain exposure and assess notification duties. Avoid creating extra copies of customer data just to document approval.

For wider access, see connecting AI assistants to company files. These controls also sit within the broader guide to defending against AI attacks.

What are the Australian privacy obligations?

A company account or ZDR arrangement does not itself establish permission to upload customer information. Where the Commonwealth Privacy Act applies, the business still needs to meet its privacy obligations. The opening case involved separate Victorian public-sector law.

The Australian Privacy Principles address collection notices (APP 5), permitted purposes and exceptions (APP 6), overseas disclosure (APP 8), accuracy (APP 10.2), and security and disposal (APP 11).[14] The OAIC recommends keeping personal information, especially sensitive information, out of publicly available generative AI tools as best practice.[15]

Many businesses with annual turnover of $3 million or less fall outside the Act's general coverage, but exceptions apply, including health-service providers. Check the OAIC's small-business checklist rather than deciding from turnover alone.[16] Customer contracts and confidentiality commitments also need checking before approving a use.

Sources

Preprints have not yet been peer reviewed; their findings are reported as the authors' results under their test conditions.

  1. Office of the Victorian Information Commissioner (2024). Investigation into the use of ChatGPT by a Child Protection worker. Regulatory action page, 24 September 2024; accessed 13 November 2026. Guidance
  2. Office of the Victorian Information Commissioner (2024). OVIC finds department responsible for breaches of privacy through use of ChatGPT. Regulator media release, 24 September 2024; accessed 13 November 2026. Guidance
  3. OpenAI (2026). How your data is used to improve model performance. Services for individuals; Business services and managed workspaces; feedback FAQ; accessed 13 November 2026. Web
  4. Microsoft (2026). Data protection when using Microsoft Copilot Chat for work or school. Account protection, training and logging; accessed 13 November 2026. Web
  5. Anthropic (2026). Is my data used for model training? (Commercial products). 18 August 2026; default, feedback exception and organisation controls; accessed 13 November 2026. Web
  6. OpenAI (2026). Enterprise privacy at OpenAI. ChatGPT Business access and retention questions; accessed 13 November 2026. Web
  7. OpenAI (2026). Data controls in ChatGPT. Saved chats; Temporary chat; Managed workspaces; accessed 13 November 2026. Web
  8. OpenAI (2026). Data controls in the OpenAI platform. Data retention controls for abuse monitoring; Zero Data Retention; endpoint and feature limitations; accessed 13 November 2026. Web
  9. Anthropic (2026). I have a zero data retention agreement with Anthropic. What products does it apply to?. Eligible commercial products, approval and exceptions; accessed 13 November 2026. Web
  10. Anthropic (2026). Covered Models. Data retention; Zero data retention and Enterprise Frontier Safeguards; accessed 13 November 2026. Web
  11. Anthropic (2026). Configure custom data retention controls for Enterprise plans. How data retention works; Important considerations; Set up data retention; accessed 13 November 2026. Web
  12. Microsoft (2026). Learn about retention for Copilot and AI apps. What is included for retention and deletion; How retention works; deletion timings and holds; accessed 13 November 2026. Web
  13. Microsoft (2026). Enterprise data protection in Microsoft Copilot and Microsoft Copilot Chat. Updated 4 November 2026; web queries and agents; accessed 13 November 2026. Web
  14. Commonwealth of Australia (2026). Privacy Act 1988, Schedule 1: Australian Privacy Principles. Compilation C2026C00227, effective 4 June 2026; APPs 5, 6.1-6.2, 8.1-8.2, 10.2 and 11.1-11.3; accessed 13 November 2026. Legislation
  15. Office of the Australian Information Commissioner (2025). Guidance on privacy and the use of commercially available AI products. Updated 17 January 2025; Top five takeaways; AI inputs and APP 6; accessed 13 November 2026. Guidance
  16. Office of the Australian Information Commissioner (2026). Small business. Privacy Act coverage and small-business checklist; accessed 13 November 2026. Guidance
Dr Brent Coker

About the author

Dr Brent Coker holds a PhD in electronic commerce and information systems and has been a Senior Lecturer at the University of Melbourne since 2008. His work sits where system design meets human behaviour. As an expert witness he has given evidence on consumer deception, fraud, privacy and data manipulation. He now researches AI security, focusing on how to control what AI agents are allowed to do when the consequences are high and the agent may not be trustworthy.

  • PhD, electronic commerce and information systems
  • Senior Lecturer, University of Melbourne, since 2008
  • Expert witness: deception, fraud, privacy and data manipulation
  • Builds and security-reviews production LLM systems
  • Researching control of high-consequence AI agent actions