United States
USA
Cellcom cyberattack cripples regional calling and texting services
Cellcom confirmed a cyberattack disrupted its network starting May 14, impairing inbound and outbound calling and SMS across parts of Wisconsin and Michigan. Restoration efforts brought most services back over subsequent days, with intermittent issues as systems stabilized; the company reported no evidence of data theft.
60
Estimated severity
60 / 100
88
Source reliability
88 / 100
Approximate Date
14/05/2025
Targeted Company
CELLCOM
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
North America · United States
Operational Impact
Duration
No information
Financial impact (USD M)
No information
Impact types
Service unavailabilityService degradationOperational disruption
Affected sectors
Telecommunications
Affected departments
Information Technology
Attack Profile
Attack types
No information
Attributed threat actors
No information