United States
USA
Tucson Unified ransomware forces districtwide offline teaching
A ransomware attack discovered on 30 January 2023 disabled district internet/network services at Tucson Unified School District, requiring teachers to adapt instruction to offline lessons while schools remained open. Royal demanded payment and later claimed to have obtained district data.
76
Estimated severity
76 / 100
92
Source reliability
92 / 100
Approximate Date
2023-01-30
Targeted Company
TUCSON UNIFIED SCHOOL DISTRICT
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
Arizona · United States
Operational Impact
Duration
No information
Financial impact (USD M)
No information
Impact types
Operational disruptionService degradation
Affected sectors
Education & Research
Affected departments
Information Technology
Attack Profile
Attack types
Ransomware
Attributed threat actors
ROYAL
Sources
Incident Sources
tucson.comhttps://tucson.com/news/local/cybersecurity-incident-shuts-down-tusd-internet-network-services/article_8b086dec-a0d2-11ed-9714-e30ab89e2cf9.htmlkgun9.comhttps://www.kgun9.com/news/local-news/tusd-holds-meeting-following-cyber-attacknews.bloomberglaw.comhttps://news.bloomberglaw.com/privacy-and-data-security/ransomware-gang-steals-tucson-school-data-teachers-left-in-dark