United States
USA
Cyberattack disrupts Alamo Heights ISD internet for nearly a week
Alamo Heights Independent School District suffered a March 2026 cyberattack that disrupted district internet access for staff and students for nearly a week. Subsequent investigation determined that an unauthorized actor accessed district information and potentially downloaded personal data before systems were restored.
70
Estimated severity
70 / 100
82
Source reliability
82 / 100
Approximate Date
23/03/2026
Targeted Company
ALAMO HEIGHTS INDEPENDENT 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
Texas · United States
Operational Impact
Duration
No information
Financial impact (USD M)
No information
Impact types
Service degradationService unavailability
Affected sectors
Education & Research
Affected departments
Information Technology
Attack Profile
Attack types
MalwareUnauthorized accessData breach
Attributed threat actors
No information