Can Employees Sue If You Disclose Personal Information in Australia?

If you’ve ever wondered “can I sue my employer for disclosing personal information?”, you’re not alone - that exact question is trending among employees in Australia.

For small business owners, that search tells you something important: people care deeply about how their data is handled, and they’re prepared to take action if it’s mishandled.

In this guide, we’ll unpack when a disclosure can create legal risk, what laws apply to employee and candidate data, what claims you could face, and how to build simple, practical protections that reduce your risk of a costly dispute.

Our aim is to help you handle personal information the right way - with clear processes, the right documents, and a game plan if something goes wrong.

Why Are Employees Asking “Can I Sue My Employer For Disclosing Personal Information?”

Personal information is woven into day-to-day operations: resumes, payroll, TFNs, emergency contacts, health information for sick leave, performance notes, CCTV and access logs, and more.

When that information is shared without a lawful reason - even accidentally - employees may feel exposed. A mistaken “reply all,” uploading the wrong file to a shared drive, or mentioning someone’s medical condition in a team channel can escalate quickly.

From a legal perspective, employees have multiple avenues to pursue complaints and compensation. Even if your business is small, a privacy incident can burn time, trust and money. The good news: most risks are manageable with good policies, training and prompt incident response.

What Counts As Personal Information In Australia?

Personal information is any information that identifies, or could reasonably identify, a person. Common examples in the workplace include:

• Names, addresses, email addresses and phone numbers
• Date of birth, tax file numbers and banking details
• Employment records, performance notes and disciplinary history
• Health information (e.g. medical certificates, injury reports, disability adjustments)
• Images and biometrics (e.g. staff photos, facial recognition, CCTV)
• Device identifiers, IP addresses and access logs if linked to a person

“Sensitive information” (like health information) attracts higher protections. Mismanaging it carries greater risk and usually requires tighter access controls and clear justification for any use or disclosure.

A helpful mindset is “minimum necessary” - only collect, use and disclose what you genuinely need for a lawful work purpose, and only to people who need to know.

When Could Your Business Be Liable For A Privacy Breach?

There isn’t just one “privacy law” in Australia that answers every situation. Liability can arise under several pathways, depending on the facts.

1) Privacy Act 1988 (Cth) And The Notifiable Data Breaches (NDB) Scheme

Most medium and large businesses are covered by the Privacy Act (the federal law enforced by the Office of the Australian Information Commissioner, or OAIC). Many small businesses are exempt - but there are important exceptions (for example, health service providers, businesses trading in personal information, and certain government contractors).

If you are an “APP entity” under the Privacy Act, you must comply with the Australian Privacy Principles (APPs). If you experience an “eligible data breach” likely to cause serious harm, you must notify affected individuals and the OAIC under the NDB scheme.

Even where the Privacy Act doesn’t apply, privacy expectations still do, and other legal risks remain (see below). Having a clear Privacy Policy and a tested Data Breach Response Plan is a strong sign you take privacy seriously.

2) Breach Of Confidence

Courts can protect confidential information even outside the Privacy Act. If information is provided in circumstances importing an obligation of confidence (for example, HR files, medical information, trade secrets), unauthorised disclosure can lead to an action in breach of confidence. Remedies can include injunctions and damages.

3) Contract Claims

Confidentiality obligations are almost always built into employment agreements and policies. Disclosing personal information contrary to those terms can trigger a straightforward breach of contract claim.

4) Negligence And Vicarious Liability

If poor security or lax processes lead to foreseeable harm (for example, identity theft following a preventable leak), an employee may allege negligence. You may also be vicariously liable for an employee’s wrongful disclosure made in the course of their employment.

5) Regulatory And Other Laws

Other obligations may apply depending on what was disclosed and how it was collected. For example, surveillance and recording rules, health records laws, and obligations around data retention and disposal can be relevant. It’s worth reviewing your approach to data retention so personal information isn’t kept longer than necessary.

Common Disclosure Scenarios (And How To Avoid Them)

Accidental Email Or Messaging Disclosures

Examples include sharing a spreadsheet of payroll data with the wrong client, or posting a medical certificate in a public Slack channel.

Reduce risk with simple controls: role-based access, read-only views, masked data, and clear rules about what may be shared in chats versus HR systems. An Information Security Policy and practical training go a long way.

Discussing Health Information Inappropriately

Managers often need to discuss capacity for work, but broadcasting details of someone’s diagnosis to a team isn’t necessary. Keep discussions strictly “need to know,” focus on adjustments rather than diagnoses, and store documents in a restricted HR folder.

Using CCTV And Monitoring Tools Without Clear Rules

Security cameras and device monitoring can be lawful with the right notices and processes, but surprise surveillance or sharing footage widely can create risk. If you monitor emails or devices, ensure you have a clear policy and that staff know the rules. It’s helpful to align your approach with resources like our article on employer access to employee emails.

Sharing Data With Service Providers

Outsourced payroll, HRIS, IT support and recruiters often receive employee data. If the provider mishandles it, you may still face reputational and legal consequences. Use a robust Data Processing Agreement to set security, confidentiality and breach-notification standards.

Unclear Lines Between “Privacy” And “Confidentiality”

Privacy law and confidentiality overlap but are not identical. Employees expect you to protect both their personal information and other confidential details. This distinction is explained here: difference between privacy and confidentiality.

Are Employee Records Exempt Under The Privacy Act?

There is an “employee records exemption” for some acts and practices of private sector employers directly related to current or former employee records. However, it’s narrower than many people assume.

Key points to keep in mind:

• It does not apply to job candidates who are not yet employees (so recruiting practices still need APP-compliant notices and handling).
• It does not excuse poor security - unauthorised access, disclosure or loss can still trigger obligations (and significant trust damage).
• It does not protect you from breach of confidence or contract claims if you disclose confidential information improperly.
• It does not apply to contractors, volunteers or secondees who are not “employees”.

Even where the exemption applies, having a clear process remains best practice. Transparent collection notices and access controls build trust and reduce mistakes. Introducing a tailored Employee Privacy Handbook helps managers and staff understand what’s okay to collect, use and disclose in everyday scenarios.

Could An Employee Actually Sue You?

In practice, employees have several options, and they can pursue more than one at a time.

OAIC Complaints And Regulatory Action

If your business is an APP entity and an employee (or candidate) believes you mishandled personal information, they can complain to you and then to the OAIC. The OAIC can investigate, require remediation and, in serious cases, seek civil penalties. Having a simple, accessible privacy complaint handling procedure reduces escalation risk and shows you’re engaging in good faith.

Breach Of Confidence

Where sensitive information (like medical details) was disclosed without authorisation and in circumstances of confidence, a court can order injunctions and damages. This path does not depend on the Privacy Act applying.

Contractual Claims

If your contracts and policies include confidentiality clauses - they should - an employee may allege breach and seek contractual remedies.

Negligence

If a preventable lapse in security leads to harm (identity fraud, financial loss), negligence claims can be raised. Insurers often expect you to demonstrate reasonable steps: policies, training, access controls, vendor agreements, and a credible incident response plan.

Other Avenues

Depending on the circumstances, workplace laws, surveillance laws and health records legislation may also be relevant. As a rule of thumb, take every concern seriously and respond quickly and transparently.

Prevention And Response: Practical Steps For Small Businesses

Most privacy disputes are avoidable. Here’s a simple, workable approach that fits small teams and busy founders.

1) Map Your Data And Minimise It

• List what you collect (recruitment, onboarding, payroll, performance, CCTV, IT logs).
• Ask “Do we really need this?” and “Who truly needs access?”
• Set retention rules so you’re not holding unnecessary risk - align with your obligations under data retention laws in Australia.

2) Put The Core Documents In Place

• Privacy Policy that explains, in plain English, how you handle personal information (staff and candidates included).
• Privacy Collection Notice at key touchpoints (job applications, onboarding forms), so people know what you collect and why.
• Employment contracts with robust confidentiality terms and clear references to your policies.
• Third-party Data Processing Agreements with payroll, HR and IT providers.

3) Set Practical Controls

• Role-based access; store HR files in restricted folders; avoid sharing sensitive files via email when a secure HRIS will do.
• Train managers to discuss capability and adjustments rather than diagnoses, and to share “minimum necessary” information.
• Use DLP (data loss prevention) features and redaction templates for routine reporting.
• Document how you handle email monitoring or device access; communicate this clearly to staff to avoid surprises - our guidance on employer access to employee emails provides helpful context.

4) Prepare For Incidents

• Adopt an actionable Data Breach Response Plan that sets out roles, triage steps and timeframes.
• If the breach may cause serious harm, be ready to meet your data breach notification obligations.
• Keep a log of incidents and near misses - patterns will show where to improve processes or training.

5) Keep It Human

If something goes wrong, respond quickly, explain what happened in plain language, outline what you’re doing to fix it, and offer support. That approach not only reduces legal risk - it preserves trust.

What Legal Documents Should You Have In Place?

Here’s a quick checklist of documents most employers should consider. Not every business will need every item, but many will need several.

• Privacy Policy: Sets out how you collect, use and disclose personal information for staff, candidates and others. A clear, tailored Privacy Policy is a cornerstone of compliance and trust.
• Privacy Collection Notice: Short notice given at the point of collection - e.g. on your application form or onboarding pack - explaining what you’re collecting and why, with a link to your full policy. See Privacy Collection Notice.
• Employment Contract: Includes confidentiality clauses, IP ownership and references to your policies. Make sure it aligns with your internal processes and any monitoring practices.
• Employee Privacy Handbook: An operational guide for staff and managers that unpacks your rules in everyday language and scenarios. Our Employee Privacy Handbook framework helps with practical implementation.
• Information Security Policy: Sets access controls, password standards, encryption and data handling practices. A concise Information Security Policy is essential even for small teams.
• Data Processing Agreement (with Vendors): Contractual obligations on payroll/HRIS/IT providers covering security, confidentiality, sub-processing and breach notifications. Use a strong Data Processing Agreement.
• Data Breach Response Plan: A “when not if” playbook so you can act quickly and consistently if an incident occurs. See Data Breach Response Plan.
• Privacy Complaint Handling Procedure: A short, friendly process that resolves concerns early and documents your response. Consider a formal privacy complaint handling procedure.

These documents work best when they’re short, readable and aligned with actual workflows. If you’re introducing several at once, start with the essentials and build from there.

Key Takeaways

• Employees are asking “can I sue my employer for disclosing personal information?” because privacy incidents are common - and avoidable with the right steps.
• Legal risk can arise under the Privacy Act, breach of confidence, contract and negligence, even for small businesses.
• Limit what you collect and who can access it, and set clear rules for health information, surveillance and everyday sharing.
• Put the right foundations in place: a tailored Privacy Policy, collection notices, confidentiality terms, vendor agreements and an incident response plan.
• Train your team, respond quickly to incidents, and keep a human touch - transparency and prompt action reduce both harm and legal exposure.
• If you’re unsure whether the Privacy Act applies or how the employee records exemption affects you, get advice early and document a workable approach.

If you’d like a consultation on managing employee privacy and reducing your risk of disclosure claims, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.