#Cellcom, ein rural Carrier, wurde wohl gecybert. Dementsprechend scheint da gerade kein Voice oder SMS zu funktionieren.

#KRITIS

CC @HonkHase

https://www.cellcom.com/service

Cyberattack Hits Cellcom: Voice, Text Services Down; FBI Notified
https://thecyberexpress.com/cellcom-cyberattack-discupts-calls/

#Infosec #Security #Cybersecurity #CeptBiro #Cyberattack #Cellcom #FBI

Cellcom suffered a cyber-attack

Time: Attack happened on May 14, 2025

Impact:
- Disruption to voice and SMS services for customers across Wisconsin and Upper Michigan
- Personal info not believed to be stolen at this time

Attacker: currently unknown

Remediation:
- Engaged outside cybersecurity experts to investigate
- Notified FBI and Wisconsin officials
- Working to restore services

#cybersecurity #Cellcom #breach

Read more: https://www.bleepingcomputer.com/news/security/mobile-carrier-cellcom-confirms-cyberattack-behind-extended-outages/

Mobile carrier #Cellcom confirms #cyberattack behind extended outages

https://www.bleepingcomputer.com/news/security/mobile-carrier-cellcom-confirms-cyberattack-behind-extended-outages/

#cybersecurity #telecom

Cellcom’s cyberattack left thousands in silence—imagine no texts, no calls, and even emergencies disrupted. What does this reveal about our reliance on digital lifelines? Dive into the story behind the outage.

https://thedefendopsdiaries.com/the-cellcom-cyberattack-lessons-in-cybersecurity-and-communication-resilience/

#cyberattack
#cellcom
#communicationresilience
#cybersecurity
#telecommunications

One of my Discord friends is a customer of regional Wisconsin phone provider "Cellcom"... they've apparently had a text and voice outage for the past 2-3 days, but data works fine. What's weird is they keep giving "update" posts that lack any specificity and might be AI generated, and have made basically no visible progress on getting it fixed. (Updates posted here under "Previous Updates" - https://www.cellcom.com/service - and additional FAQs like "What is going on" and "Why can't I port my number right now?")

At this point I'm thinking, it's gotta be a cyber-attack, right? Somebody (or something - ransomware, etc) got in and destroyed a bunch of production computer systems, and they've got to go restore from untested backups or rebuild from scratch. What else could take so long and slow a rollout to repair? But they won't _say_ that. Really strange.

#infosec #cybersecurity #cellcom #wisconsin #ransomware