Pro Medicus responds to data breach speculation: no client or patient data accessed

Pro Medicus confirms no client data accessed and no impact following an isolated company email security incident.

Laura Stewart

Author bio Laura Stewart is a Finance Editor at The Motley Fool, where she covers Australian and international equity markets. She joined the company in 2022, following a career transition from legal advisory work in Southeast Asia into the investment industry. Prior to her current editorial role, Laura spent three years as an Equity Analyst and Writer, producing investment research across the ASX, NYSE, and NASDAQ. Her coverage included small-cap growth companies, thematic investment ideas, and high-quality U.S.-listed businesses. Laura holds a Master of Applied Finance and brings additional expertise in accounting, taxation, and estate and wealth planning from her postgraduate studies. She also has a background in law and communications, which supports her analytical and reporting work in financial markets. Outside of work, she enjoys spending time in the Adelaide Hills with her flock of sheep. Education Laura holds a Bachelor of Laws, a Bachelor of Communication (Journalism), and a Bachelor of Commerce with majors in Accounting and Corporate Finance. In 2025, she completed a Master of Applied Finance at the University of Adelaide, receiving postgraduate awards in Accounting Concepts & Methods, Ethical Principles in Accounting & Finance, Real Estate Valuation & Investment, and Tax, Estate & Wealth Planning. Social media LinkedIn FYI – I am taking a break from social media at the moment, so this account isn’t active at the moment, but I will let you know when I rejoin. Favorite investment quote "Compound interest is the eighth wonder of the world. He who understands it, earns it... he who doesn't... pays it." — Albert Einstein

Published December 4, 2025 10:56 am AEDT

The Pro Medicus Ltd (ASX: PME) share price is in focus after addressing speculation of a potential data breach, confirming no client or patient data was accessed and no financial loss occurred.

falling telco asx share price represented by mobile phone displaying security breach — Image Source: Getty Images

What did Pro Medicus report?

Investigated unauthorised access of a single company email inbox in July 2025
No client systems or patient data were accessed
No Pro Medicus products, systems, or databases were affected
No operational impact or financial loss resulted from the incident
Potential exposure of personal data for approximately 100 current and former employees
All impacted individuals have been notified

What else do investors need to know?

The company confirmed the cybersecurity incident was isolated to a single mailbox and was quickly contained with the help of external experts. There is no evidence that any commercially sensitive or material information was accessed during the breach.

Pro Medicus has informed all applicable government authorities as required by law, and all directly affected employees were promptly notified about the possible personal data exposure.

What's next for Pro Medicus?

Pro Medicus states that its systems and client information remain secure. The company continues to review its cybersecurity practices and is committed to protecting data in line with industry best practice.

There is no expectation of financial or operational impact, with Pro Medicus focusing on its ongoing delivery of medical imaging software solutions and services worldwide.

Pro Medicus share price snapshot

Over the past 12 months, Pro Medicus shares have declined 3%, trailing the S&P/ASX 200 Index (ASX: XJO) which has risen 2% over the same period.

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