Family emails and AI confidentiality: what an update after an NDIS incident gives away in ChatGPT or Claude.
Writing to a participant’s family after an incident is the hardest writing a service manager does. It has to be accurate, kind and careful about what can be said. That is why managers ask ChatGPT or Claude to help. The email carries the participant’s injury, the hospital, the worker involved, whatever the service has to admit and something the participant asked to keep from his own daughter. This page marks every item in an email to a nominee after a fall that the Practice Standards, the Complaints Rules and the Privacy Act bear on, and shows how the same email is drafted on Ermos inside the service.
The email to a participant’s family
Sent by the service manager to the participant’s nominee or family contact, with the participant’s consent where he can give it, after an incident. The Information Management standard expects consent to cover the purpose of a disclosure and when information may be disclosed.
To: Karen Hayes (karen.hayes@example.com)1
From: Meena Ramanathan, Brushbox Community Supports9
Date: Wednesday 21 October 2026, 5.12pm
Subject: Graham1: update after yesterday
Dear Karen,
Thank you for taking my call yesterday. I want to put in writing what we know.
Graham fell in the bathroom at about 8.40am yesterday during his shower. He has broken his left wrist and has bruising on his left hip. He was not knocked out and was talking to the paramedics.2
He is at John Hunter Hospital. The orthopaedic team plan to put the wrist in a cast today and expect to discharge him on Friday if the pain is controlled. Beth was with him this morning and will be there when he leaves.3
The worker who was with him has been taken off the roster while we review what happened. I cannot say more about him, but it is being taken seriously. I have reported the fall to the NDIS Commission, as the rules require.4
I also need to tell you that the occupational therapist recommended two workers for his showers in September. We had not yet changed the roster. That was our responsibility and I am sorry.5
You asked that we not tell Chloe about the fall yet. We have not, and we will not unless Graham says we can. He told Beth this morning he does not want her worried before her exams.6
From Friday there will be two workers at every shower. Could we meet at Graham’s home at 11am on Monday 26 October to go through his plan again?8
If you are not happy with how we have handled this, you can tell me, ask for our complaints process, or contact the NDIS Quality and Safeguards Commission.7
Warm regards,
Meena
An invented email. The email address is a reserved example address. Hover or tap any highlighted item for the analysis; the full list is below.
What leaves the service
- 1The recipient and the participant
A named nominee at an email address, and the man the email is about. Personal information, and the link between a family and a service. Privacy Act guide.
Frontier Models (ChatGPT, Claude) A nominee and a participant identified, generally offshore on personal plans Ermos Edge Stays on your instance in Australia; leaves only inside a permitted excerpt, per question, to the named provider Ermos Dominion Stays on the unit in your office - 2The injury
What happened, which bone was broken and that he was conscious. Health information, which is sensitive information under the Privacy Act. Patient data guide.
Frontier Models (ChatGPT, Claude) Sensitive health information transmitted; on consumer tiers it can train future models Ermos Edge Stays on your instance in Australia; leaves only inside a permitted excerpt, per question, to the named provider Ermos Dominion Stays on the unit in your office - 3The hospital and the discharge plan
Where he is, what treatment is planned and when he is expected home. Health information, and a statement of when he will be alone. Patient data guide.
Frontier Models (ChatGPT, Claude) Treatment and discharge plans transmitted Ermos Edge Stays on your instance in Australia; leaves only inside a permitted excerpt, per question, to the named provider Ermos Dominion Stays on the unit in your office - 4The worker and the notification
That a worker has been taken off the roster and that the Commission has been told. An allegation that is not a finding. The Rules treat alleged incidents as reportable, and the Complaints Rules require procedural fairness when a complaint is dealt with. Privacy Act guide.
Frontier Models (ChatGPT, Claude) An allegation about a worker and a notification transmitted Ermos Edge Stays on your instance in Australia; leaves only inside a permitted excerpt, per question, to the named provider Ermos Dominion Stays on the unit in your office - 5An admission
A written admission that a safeguard was recommended and not put in place. The manager’s decision, and the sentence that matters most if the matter is later disputed.
Frontier Models (ChatGPT, Claude) A written admission now on a third party’s servers Ermos Edge Whether to admit fault is the manager’s decision whichever tool drafts the email Ermos Dominion Whether to admit fault is the manager’s decision whichever tool drafts the email - 6A request about his daughter
What Graham has asked that his daughter not be told and why. A confidence given by a participant about his own family, which the Code of Conduct requires workers to respect. Privacy Act guide.
Frontier Models (ChatGPT, Claude) A confidence about his daughter transmitted Ermos Edge Stays on your instance in Australia; leaves only inside a permitted excerpt, per question, to the named provider Ermos Dominion Stays on the unit in your office - 7How to complain
The complaint avenues. The Complaints Rules require reasonable steps to ensure a complainant and each affected person with disability are advised how a complaint can be raised with the Commissioner. Wording the service uses in every response.
Frontier Models (ChatGPT, Claude) Standard complaint wording; nothing in it identifies anyone Ermos Edge Nothing to protect either way Ermos Dominion Nothing to protect either way - 8The changes and the meeting
A change in how Graham is supported, from a named day, and an appointment at his home. Operational detail that shows when and where.
Frontier Models (ChatGPT, Claude) A change to his care and a meeting at his home transmitted Ermos Edge Stays on your instance in Australia; leaves only inside a permitted excerpt, per question, to the named provider Ermos Dominion Stays on the unit in your office - 9The sender
Ties the email and its admissions to the responsible manager.
Frontier Models (ChatGPT, Claude) Transmitted, and the leak is traceable to you Ermos Edge Stays on your instance in Australia; leaves only inside a permitted excerpt, per question, to the named provider Ermos Dominion Stays on the unit in your office
What happens in Frontier Models (ChatGPT, Claude)
- The whole document is transmitted to the provider’s servers. On personal plans the user cannot choose where it is stored or processed, and for the major providers that has generally meant outside Australia, under that country’s legal process. Some business plans offer storage in Australia, but the provider still receives the content.
- On consumer tiers, prompts can be retained and used to train future models.
- The provider’s staff and systems can reach the content under the provider’s own policies.
- Once sent, the service no longer controls it. Retention and deletion happen on the provider’s terms.
The same document on Ermos
Ermos Dominion
The document is drafted on a unit in your office, from your own templates and the participant file. Every marked item stays on the unit, which keeps working with the internet switched off. Nothing in it is transmitted to an AI provider, so there is no disclosure to analyse: the confidentiality work is the same as for your file server.
Ermos Edge
Your documents, the index and your access boundaries stay on your own instance in an Australian data centre. When a staff member asks for this draft, only their question and the excerpts they are permitted to see go to a named Australian provider, who is contractually barred from keeping the content or training any model on it. Nothing is processed outside Australia.
| Frontier Models (ChatGPT, Claude) | Ermos Edge | Ermos Dominion | |
|---|---|---|---|
| Where the document is processed | Provider servers, generally offshore on personal plans | Your instance in an Australian data centre; answers generated in Australia | The unit in your office |
| Who can read it | Provider staff and systems, under policy | Your staff, within the boundaries you set. The named Australian provider processes only permitted excerpts, under contract, and keeps nothing | Your staff only |
| Is it kept | On the provider’s terms | Kept on your instance; the provider is barred from retaining it | Stays on the unit |
| Can it train a model | On consumer tiers, yes | No, by contract | Only your own unit learns from it, on your hardware |
Part of AI data leakage in NDIS services.
Common questions
Do ChatGPT and Claude use the information in an email to a participant's family?
Is it safe to paste a family email into ChatGPT or Claude?
Can ChatGPT or Claude be trusted to draft an email to a participant's family?
How can an NDIS provider use AI for a family email without sending it to ChatGPT or Claude?
Can a service tell a participant's sister about a fall?
What should a response to a family say about how to complain?
Is it appropriate to name the worker in an email to the family?
See Dominion answering from your own documents.
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