← All posts

How to File an OAIC Complaint About a Privacy Breach (Step by Step)

2026-03-28

# How to File an OAIC Complaint About a Privacy Breach (Step by Step)

Someone mishandled your personal information. Maybe a medical practice emailed your records to the wrong person. Maybe a company disclosed your data without consent. Maybe you found out your information was part of a breach and the organisation hasn't told you what happened.

You want to do something about it. Here's exactly how.

Before You Complain to the OAIC

This is the step most people skip, and it will get your complaint bounced.

You must complain to the organisation first. The OAIC generally will not investigate a complaint unless you've first raised it directly with the organisation that you believe breached your privacy, and either:

This isn't optional. Section 40(1A) of the Privacy Act 1988 requires that a complainant must have first complained to the respondent, unless the Commissioner considers it was not appropriate to do so.

How to Complain to the Organisation

Write to them. Email is fine. Include:

1. What happened. Be factual and specific. "On [date], [organisation] emailed my medical records to [wrong person / disclosed my information to / failed to protect my data by...]."

2. What information was involved. Health records, financial details, contact information, etc.

3. What you want them to do. Apology, explanation, steps taken to prevent recurrence, compensation, or a combination.

4. A reasonable timeframe. State you expect a response within 30 days, and will escalate to the OAIC if unresolved.

Keep a copy of everything. You'll need it.

If 30 days pass without a substantive response, you've met the threshold -- proceed to the OAIC. If they respond with a form letter or "we take privacy seriously" non-answer, you can also proceed. Include their response with your complaint.

Filing Your OAIC Complaint

Step 1: Confirm the Organisation Is Covered

The Privacy Act applies to:

Health service providers are covered regardless of size. A solo GP operating as a sole trader with $200,000 in revenue is still subject to the Privacy Act. This is a specific carve-out -- the small business exemption does not apply to health services.

If you're unsure whether an organisation is covered, the OAIC's website has guidance on this.

Step 2: Gather Your Documentation

Before you start the complaint form, assemble:

Step 3: Submit the Complaint

Go to oaic.gov.au and navigate to the privacy complaint page. The OAIC accepts complaints through:

The online form is the most efficient path. It ensures you provide the information the OAIC needs to assess your complaint without back-and-forth.

Step 4: What to Include in the Complaint

The form asks for:

1. Your details. Name, contact info. Generally the organisation will be told who complained.

2. The respondent organisation. Name, address, reference numbers.

3. What happened. Factual description. What, when, what information. Save the editorialising.

4. Which APP was breached. You don't have to identify this -- the OAIC will assess -- but it helps. Common ones: APP 6 (unauthorised use/disclosure), APP 11 (failure to protect), APP 12 (failure to provide access).

5. Evidence you complained first and their response (or lack thereof).

6. Desired outcome. Be specific: apology, policy changes, access to information, compensation.

What Happens After You File

Assessment

The OAIC will assess whether your complaint is within jurisdiction and whether it warrants investigation. Not every complaint proceeds to a full investigation. The OAIC may:

You'll be notified of the outcome of the assessment.

Conciliation

If the complaint proceeds, the OAIC typically attempts conciliation first. This is an informal process where the OAIC facilitates a resolution between you and the organisation. Many complaints are resolved at this stage.

Conciliated outcomes can include:

Investigation

If conciliation fails or the matter is sufficiently serious, the OAIC may conduct a formal investigation. This involves gathering evidence from both parties, potentially interviewing witnesses, and analysing the organisation's privacy practices.

Determination

At the end of an investigation, the Commissioner can make a determination that includes:

Determinations are enforceable through the Federal Court or Federal Circuit and Family Court.

Timelines

This is where expectations need to be managed.

The OAIC's published service standards indicate that most complaints are assessed within 60 days of receipt. However, complex matters take longer.

From lodgement to resolution, typical timelines are:

The OAIC has publicly acknowledged that its complaint handling timelines have been affected by high volumes, particularly following major data breaches that generate large numbers of individual complaints.

If your complaint involves a clear, documented breach with straightforward evidence, it's likely to be resolved faster. If it involves complex factual questions or systemic issues, prepare for a longer process.

What You Can't Get

A few things the OAIC process does not provide:

Protecting Yourself Going Forward

Filing a complaint is reactive. The breach already happened. If it involved insecure transmission -- a practice emailing your records without encryption -- ask what they've changed. If the answer doesn't include end-to-end encryption, the same breach can happen again. Flag systemic issues in your OAIC complaint -- the OAIC is more likely to investigate matters that reveal systemic failures.

Key Contacts

Verify current details at oaic.gov.au, as contact information may change.

---

ObsidianVault helps organisations avoid being the subject of these complaints. Zero-knowledge encrypted file transfer, built for compliance with Australian privacy law. Learn more at obsidianvault.vip

Stop emailing unencrypted files.

Try ObsidianVault -- free