Unitedhealth Group Inc discloses a cybersecurity incident (SEC 8-K, February 2024)
On February 21, 2024, UnitedHealth Group (the “Company”) identified a suspected nation-state associated cyber security threat actor had gained access to some of the Change Healthcare information technology systems.
What happened
- Immediately upon detection of this outside threat, the Company proactively isolated the impacted systems from other connecting systems in the interest of protecting our partners and patients, to contain, assess and remediate the incident.Form 8-K Item 1.05, Unitedhealth Group Inc, filed 2024-02-22
- The Company is working diligently to restore those systems and resume normal operations as soon as possible, but cannot estimate the duration or extent of the disruption at this time.Form 8-K Item 1.05, Unitedhealth Group Inc, filed 2024-02-22
- During the disruption, certain networks and transactional services may not be accessible.Form 8-K Item 1.05, Unitedhealth Group Inc, filed 2024-02-22
The failure pattern
Watch the pattern: Insufficient segmentation lets a foothold spread
Related standards
CollectSEA's mapping through this incident's failure pattern; not an official determination by the standards bodies.
Building something similar?
Describe your design and see every precedent that applies, with safeguards you can hand to your coding agent.
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Boston Scientific Corp discloses a cybersecurity incident (SEC 8-K, September 2026)
As previously disclosed in a Current Report on Form 8-K filed on August 26, 2026 with the Securities and Exchange Commission, on August 25, 2026, Boston Scientific Corporation (the “ Company ”) identified a cybersecurity…