Parexel International
Data Breach Class Action Lawsuit
Posted: December 18, 2025 -- Parexel International data breach class action lawsuit investigation.
Abington Cole + Ellery is investigating the data breach recently announced by Parexel International and may be filing a class action lawsuit on behalf of victims.
Parexel International Data Breach Summary:
In mid-December 2025, Parexel International, a contract research organization (CRO), disclosed a security incident involving unauthorized access to sensitive data, which took potentially took place sometime around, on, or before October 4, 2025. Thousands of individuals were potentially affected by the Parexel International data breach, and breached data may include, but is not necessarily limited to: name, date of birth, financial account number and/or payment card number (without CVV), social security and/or national ID number. As a result of the data breach, Parexel International is offering 24 months of free credit monitoring and/or identity theft protection services to some affected individuals.
FREE CONSULTATION: If you are a victim of the Parexel International data breach, and interested in potentially volunteering to serve as a class representative in a class action lawsuit against Parexel International, please submit your information here to be considered:
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Parexel International Data Breach Details:
Parexel International, LLC has reported a recently disclosed security incident tied to a system it used through a third-party vendor. According to summaries of Parexel’s regulator-filed notice, the company detected suspicious activity on October 4, 2025 affecting part of its Oracle OCI-hosted Oracle E-Business Suite (Oracle EBS) environment, and then launched an investigation with outside specialists to understand what happened and what data could have been exposed. Parexel’s consumer notifications and regulator reports began going out around December 17, 2025, roughly after the company finished identifying whose information was involved and what categories of data were present.
Based on those same notice-based summaries, the incident appears to have involved unauthorized activity within that hosted Oracle EBS environment, rather than (for example) a lost device or an employee email mistake. Parexel has not (in the public summaries available) described every technical detail of the intrusion chain, but the timing overlaps with widely reported active exploitation and extortion activity targeting Oracle E-Business Suite in early October 2025, including security advisories describing remotely exploitable flaws and reporting on attackers contacting organizations about alleged Oracle EBS access. That doesn’t prove the same technique was used against Parexel, but it provides context for the kind of risk environment affecting Oracle EBS customers during that period.
As for what information was at stake, third-party breach trackers that summarize the notification materials describe exposed data elements that can include name, date of birth, Social Security number, and financial information (the exact combination can vary by person and what was stored about them). These summaries also indicate Parexel offered 24 months of credit monitoring as part of its response and recommended routine steps like monitoring accounts and credit files.
Additional information about the Parexel International data breach may be found here: Parexel International Data Breach Notification. The Parexel International Website may also have additional information about or provide periodic updates regarding the data breach.
About Parexel International:
Parexel International is a contract research organization (CRO) that supports pharmaceutical, biotechnology, and other life-sciences companies by running and managing parts of the drug-development process, especially clinical trials. In September 2025, Parexel announced it opened a new global headquarters in Raleigh, North Carolina (moving from Durham) and described a workforce of 24,000+ professionals worldwide.
Operationally, Parexel’s work spans the planning and execution of clinical studies (from early-stage through later-stage trials), along with related services that typically sit around trials—such as study operations, clinical data work, regulatory support, and other “clinical and consulting” activities described by the company. Parexel also describes a broad geographic footprint, with staff and offices across North America, Latin America, Europe/Middle East/Africa, and Asia-Pacific, and it references dedicated early-phase clinic locations (for example, in Baltimore, Los Angeles, Berlin, and London) plus clinical-trial supplies and logistics depots in multiple regions.
From a corporate-structure standpoint, Parexel is privately held and has changed ownership in recent years: in November 2021 it announced the completion of its acquisition by EQT IX and funds managed by Goldman Sachs Asset Management’s private equity business (from Pamplona) in a deal valued at $8.5 billion, after the July 2021 agreement announcement. Over time, Parexel has also built out adjacent capabilities and brands that sit alongside core clinical operations—for example, it highlights offerings such as Parexel Academy, and it lists Health Advances and The Medical Affairs Company as part of its “family of brands,” which signals an emphasis on both trial delivery and specialized advisory/medical-affairs support.
Additional Information:
Sample Data Security Incident Notification
For more information about steps you can take to possibly reduce the chances harm arising from a data breach, please review the following article: What are some steps you can take if you've been the victim of a data breach?
If you believe you are a victim of the Parexel International data breach, and if you would like to volunteer to serve as a class representative in a class action lawsuit regarding this data breach, please submit your information via the form on this webpage. This website is not associated with nor authorized by Parexel International or any affiliated companies. If you have received any other data breach notifications, you may to review Abington Cole + Ellery's current list of data breach investigations.