United States
USA
Cyber incident closes Southeastern Oklahoma State University campus
A cybersecurity incident beginning 30 July 2026 disrupted Southeastern Oklahoma State University systems and caused the Durant campus to close on 30 July, 31 July and 3 August. The university later confirmed that an unauthorized actor gained access to some computer systems and may have acquired copies of files. System restoration continued after the campus closures.
68
Estimated severity
68 / 100
—
Source reliability
No information
Approximate Date
30/07/2026
Targeted Company
SOUTHEASTERN OKLAHOMA STATE UNIVERSITY
Targeted Company Supply Chain Impact
Distribution & Fulfillment
Procurement & Sourcing
Production & Manufacturing
Sales (Retail & Ecommerce)
Warehousing
Service Delivery
Unrecognized Impact
Supply Chain Relations
No information
Geographic Impact
Country Targeted Company
Other Affected Countries
No other affected countries reported
Target country
United States
Affected countries
United States
Impacted regions
Oklahoma · United States
Operational Impact
Duration
3 days
Financial impact (USD M)
No information
Impact types
Facility shutdownService unavailabilityOperational disruption
Affected sectors
Education & Research
Affected departments
Information Technology
Attack Profile
Attack types
Unauthorized access
Attributed threat actors
No information