On January 31, 2025, O’Connor Corporation filed a notice of data breach with the Attorney General of Maine after discovering a recent network disruption was related to a cyberattack. In this notice, O’Connor Corp. explains that the incident resulted in an unauthorized party being able to access consumers’ sensitive information, which includes their names, Social Security numbers, and financial account information. Upon completing its investigation, O’Connor Corp. began sending out data breach notification letters to all individuals whose information was affected by the recent data security incident.
If you received a data breach notification from O’Connor Corporation, it is essential you understand what is at risk and what you can do about it. A data breach lawyer can help you learn more about how to protect yourself from becoming a victim of fraud or identity theft, as well as discuss your legal options following the O’Connor Corporation data breach. For more information, please see our recent piece on the topic here.
What Caused the O’Connor Corporation Data Breach?
The O’Connor Corporation data breach was only recently announced, and more information is expected in the near future. However, O’Connor Corp.’s filing with the Attorney General of Maine provides some important information on what led up to the breach. According to this source, on December 2, 2025, O’Connor Corporation experienced a network disruption affecting the operability of its computer systems. In response, O’Connor Corporation launched an investigation to learn more about the incident and determine what, if any, information in the company’s possession was subject to unauthorized access.
Through this investigation, O’Connor Corporation concluded that an unauthorized party was able to access portions of its IT network between November 23, 2024 and December 1, 2024. During this time, the unauthorized party may have accessed or obtained files containing confidential information belonging to certain individuals.
After learning that sensitive consumer data was accessible to an unauthorized party, O’Connor Corporation reviewed the compromised files to determine what information was leaked and which consumers were impacted. O’Connor Corporation completed this review process on January 24, 2024, and while the breached information varies depending on the individual, it may include your name, Social Security number, and financial account information.
On January 31, 2025, O’Connor Corporation sent out data breach letters to anyone who was affected by the recent data security incident. These letters should provide victims with a list of what information belonging to them was compromised.
More Information About O’Connor Corporation
O’Connor Corporation is a construction and general contracting firm specializing in commercial, industrial, and institutional projects. Headquartered in Canton, Massachusetts, the company provides a wide range of construction services, including project management, design-build solutions, and renovation work for various industries. O’Connor Corporation, along with O’Connor Safety and Beacon Piping, make up the O’Connor Companies. The organization employs approximately 29 people and generates an estimated $24 million in annual revenue.
