Abbott Cancer Diagnostics Reports Data Breach: Investigation Ongoing

Abbott Cancer Diagnostics, formerly known as Exact Sciences, disclosed a data breach involving its Cancer Diagnostics business.

The breach was reported to the New Hampshire Attorney General on Aug. 5, 2026.

The company discovered the breach on July 8, 2026. The incident involved unauthorized access to the internal systems within Abbott's Cancer Diagnostics business.

The unauthorized access affected only the Cancer Diagnostics business and did not extend to other parts of Abbott's broader operations.

Abbott Cancer Diagnostics filed a preliminary notification with the state of New Hampshire. As the investigation remains ongoing, the full scope of the breach is still being assessed.

Based on the company's investigation to date, some of the impacted files contain personal information and protected health information, although the specific data elements remain undisclosed.

Abbott Cancer Diagnostics' response to the breach

Abbott Cancer Diagnostics stated it is working diligently to further investigate the information that was accessed.

Abbott Cancer Diagnostics indicated it will make any required notifications to relevant individuals once the review is complete. The company also stated that it would provide an addendum to its regulatory filing as needed with more specific details about the breach.

Individuals with questions about the incident can contact Abbott Cancer diagnostics directly for more information.