Were you caught in the Optus or Medibank data breach?
You could be owed compensation. Australians are receiving payouts from data breach class actions against Optus, Medibank, Latitude and more. Answer 6 quick questions and ClaimCheck matches you against verified, open Australian class actions — then tells you, in plain English, whether you likely qualify.
Free to start · $9 to unlock the full report
How it works
Three steps from a guess to a grounded, personalised eligibility report you can act on.
Answer 6 questions
Tell us which services you used, when, and whether you got a breach notice. Takes about two minutes.
See your match count
We match your answers against verified Australian class actions. Free preview shows how many you may qualify for.
Unlock the full report
Pay $9 once. Get every matching case, eligibility notes in plain English, registration links, and compensation estimates.
Grounded, not guessed
Matches come from a curated database of real Australian class actions. AI only explains — it never invents cases or payouts.
Plain-English eligibility
Each match comes with a clear note on why you likely qualify and the exact next step to register with the law firm running it.
Private by default
No account required. Your answers stay in your session. We never sell your data or share it with law firms without your action.
The basics
How to join a class action in Australia
Australia has one of the most active class action regimes in the world. Here's how class actions work, how to join one, and what that means for you as a potential group member.
One case, many people
A class action (also called a representative proceeding) lets one or a few lead applicants run a single court case on behalf of a larger group of people who were harmed in a similar way. In Australia they're usually brought in the Federal Court or a state Supreme Court. If the case wins or settles, the court approves how compensation is divided among everyone who registered.
You're often already included
Most Australian class actions use an "opt-out" model: if you fit the group definition, you're automatically part of the case unless you actively opt out. To formally join a class action, you usually register with the law firm running the case — registration is free and ensures you're counted when any settlement is distributed. That's why checking your eligibility matters: you may be covered by actions you've never heard of.
No win, no fee — usually
Class actions are typically run on a no-win, no-fee basis, often backed by a litigation funder. If the case succeeds, legal costs and the funder's commission come out of the settlement pool (with court approval). If it fails, group members generally don't pay anything. Lead applicants carry the real costs risk — ordinary group members usually don't.
Data breach class actions in Australia
After major breaches like Optus and Medibank in 2022, a wave of Australian data breach class actions has targeted companies that failed to protect customer data. Compensation can cover things like the cost of replacing identity documents, time spent dealing with the fallout, and in some cases distress. Each action has its own group definition — usually based on whether you were a customer when the breach occurred.
Settlements take time
Class actions typically run for two to five years from filing to settlement or judgment. Registration windows can open and close along the way, and some settlement schemes require you to lodge a claim by a deadline to receive payment. Checking early — and registering where a scheme is open — means you don't miss out simply because you didn't know.
Where ClaimCheck fits
We're not a law firm and this isn't legal advice. ClaimCheck matches your situation against verified, open Australian class actions and points you to the law firm running each case, so you can register directly with them. Read the FAQ for more detail.
Active cases
Are you covered by these?
Tap any case to see eligibility criteria, key dates and how to register. The full report checks every match against your answers.
Apple
Opencompetition consumer · 2017–2020
Australian iPhone/iPad users who purchased apps or in-app digital content via the App Store, and Australian app developers who sold through it. The Federal Court found in favour of the class applicants at the first-stage liability trial (Anthony v Apple Inc [2025] FCA 902, 12 Aug 2025); the loss and damages stage is still pending, so no per-person amount is confirmed.
Epic Games (Fortnite)
Opencompetition consumer · 2017–2022
Australian Fortnite players (or parents of players) who made in-game purchases of V-Bucks or items through the Apple App Store or Google Play between January 2017 and September 2022 may be covered by the Federal Court proceedings Epic Games brought against Apple and Google, heard together with consumer class actions over app-store commissions. Overseas regulators have also forced refunds for unintended purchases by children.
competition consumer · 2017–2019
Australian Android users who purchased apps or in-app digital content via the Google Play Store, and Australian app developers who sold through it. Liability was found in favour of the class applicants in the companion August 2025 Federal Court judgment; the compensation stage is still pending, so no per-person amount is confirmed.
Isuzu UTE
Openconsumer protection · 2016–2024
Owners of Isuzu D-Max (MY17+) or MU-X (MY16.5+) diesel vehicles bought between 1 January 2016 and 14 August 2024 affected by DPF defects. The Federal Court proceeding (NSD1109/2024) is at an advanced stage, with the final opt-out notice already issued. No settlement amount has been confirmed.
Optus
Openprivacy breach · 2022
Current or former Optus customer whose personal data was exposed in the September 2022 breach. The class action is active in the Federal Court (no settlement approved yet, trial timetabled toward 2027), so no per-person compensation has been assessed.
Sony (PlayStation)
Openmisleading conduct · 2017 onwards
Users who purchased digital games or add-on content via the Australian PlayStation Store from 21 December 2017 onward, plus affected developers and publishers. The proceeding is still at the pleadings stage with no liability finding, so no compensation has been assessed.
Find out in two minutes
Free to start. $9 unlocks the full report — eligibility notes, compensation estimates, and registration links for every match.