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Cellcom

Cellcom Vendor Cyber Rating & Cyber Score

cellcom.com

Cellcom is an innovative wireless company that operates its own regional network to provide service for its customer base throughout Wisconsin and Upper Michigan. The company is respected for its long-standing reputation of delivering extraordinary customer care and being a strong community partner. As a subsidiary of Nsight, Cellcom is part of a family of companies offering complete telecommunications services.


Cellcom A.I CyberSecurity Scoring

Cellcom
Company Information
Website:http://www.cellcom.com
Employees number:382
Number of followers:4,989
NAICS:517312
Industry Type:Wireless Services
Homepage:cellcom.com
Cellcom Risk Score (AI oriented)
Between 700 and 749
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CellcomWireless Services
Updated:
02/04/2026
741/1000
Moderate
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Powered by our proprietary A.I cyber incident model
Insurance prefers TPRM score to calculate premium
Cellcom Global Score (TPRM)
xxxx
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CellcomWireless Services
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Findings

Cellcom
CellcomModerate
Current Score
741Ba (MODERATE)
01000
1 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
JUNE 2026
742Before Incident
MAY 2026
742Before Incident
APRIL 2026
742Before Incident
MARCH 2026
741Before Incident
FEBRUARY 2026
741Before Incident
JANUARY 2026
740Before Incident
DECEMBER 2025
740Before Incident
NOVEMBER 2025
739Before Incident
OCTOBER 2025
739Before Incident
SEPTEMBER 2025
738Before Incident
AUGUST 2025
738Before Incident
JULY 2025
737Before Incident
MAY 2025
755Before Incident
Cyber Attack
22 May 2025Cellcom
Cellcom

Cellcom Cybersecurity Incident Disrupting Voice and Text Services

736After Incident
CRITICAL-19
MYC0155301112725
Cellcom, a regional wireless provider in Wisconsin, experienced a cyberattack that disrupted voice and text services for its customers, leaving many unable to make calls or send messages. The outage, ongoing for several days, caused significant frustration and operational hardship for users. While the company confirmed that no personal or sensitive customer data was compromised, the incident led to potential risks of scams exploiting the service interruption. Cellcom engaged external cybersecurity experts and notified authorities, including the FBI and Wisconsin state officials, to address the breach. The CEO assured customers that the company was prioritizing security over speed in restoration efforts and would compensate users for the downtime. Despite progress, full service recovery remained delayed, highlighting the attack’s disruptive impact on communication infrastructure and customer trust.
INCIDENT DETAILS -
TYPE
Cyberattack (Service Disruption)
IMPACT
Data Compromised: None (no evidence of personal data being accessed or stolen)Voice servicesText messaging servicesDowntime: Ongoing (as of latest update; duration unspecified)Operational Impact: Significant disruption to customer communication services; heightened risk of scams exploiting the outageCustomer Complaints: Reported frustration and hardship among customersBrand Reputation Impact: Potential erosion of customer trust due to service disruption and prolonged restorationIdentity Theft Risk: Low (no evidence of data compromise, but customers warned of scam risks)Payment Information Risk: None reported
DATA BREACH
Type Of Data Compromised: NoneNumber Of Records Exposed: 0Sensitivity Of Data: None (no sensitive data impacted)Data Exfiltration: No evidenceFile Types Exposed: NonePersonally Identifiable Information: None

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