Strauss Borrelli PLLC, a leading data breach law firm, is investigating OSI Systems, Inc. (“OSI”) regarding its recent data breach. The OSI data breach involved sensitive personal information belonging to over 4,900 individuals.
ABOUT OSI SYSTEMS, INC.:
OSI is an electronic systems and components manufacturer based in California. Today, OSI produces and supplies specialized electronic systems and components for applications across healthcare, homeland security, defense, and aerospace.2,3 Products developed by OSI include patient monitoring systems, optical sensors, security screening equipment, and more.2 Headquartered in Hawthorne, California, OSI employs over 5,000 individuals and operates more than 25 locations globally.3,4
WHAT HAPPENED?
Recently, OSI reported to the Attorney General of Maine that it had experienced a data breach in which sensitive personal identifiable information in its care may have been compromised. According to the breach notice, on December 25, 2025, OSI became aware of suspicious activity on certain systems in its network.1 As a result, OSI launched an investigation to determine the nature of the incident.
Through its investigation, OSI confirmed that sensitive personal information in its network may have been accessed by an unauthorized third party during the breach. As a result, OSI began a review of the data to determine what information had been impacted as well as identify the specific individuals affected. On February 10, 2026, OSI completed this review. While the information impacted varies depending on the individual, the type of information potentially exposed includes:1,5
- Name
- Social Security number
- Address
On March 11, 2026, OSI began mailing data breach notification letters to impacted individuals. Based on the breach notice sent to Maine residents, OSI is providing affected individuals with a list of the specific types of sensitive information impacted and complimentary credit monitoring services. A link to the form breach notification letters that OSI filed with the Attorney General of Maine is below.
If you received a breach notification letter from OSI Systems, Inc.:
We would like to speak with you about your rights and potential legal remedies in response to this data breach. Please fill out the form, below, or contact us at 872.263.1100 or sam@straussborrelli.com.
LINKS
[2] https://www.osi-systems.com/
[3] https://www.linkedin.com/company/osi-systems/about/
[4] https://www.osi-systems.com/about-osi/global-locations/
[5] https://oag.my.site.com/datasecuritybreachreport/apex/DataSecurityReportsPage
[6] https://www.mass.gov/doc/data-breach-report-2026/download
[7] https://oag.ca.gov/ecrime/databreach/reports/sb24-619986
