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Cellcom

Claimed by Siegedsec · listed 3 years ago

31m
Age
since listed · data leaked

Status timeline

  1. ListedDec 8, 2023
  2. Data leakeddate unknown

At a glance

Group
Siegedsec
Status
Data leaked
Country
United States
Sector
Telecommunications
Listed on leak site
Dec 8, 2023

About the victim

AI dossier — public-source company profile

Cellcom is a regional telecommunications provider based in Wisconsin (and separately a Washington-state carrier), offering wireless voice, data, and related services to consumers and businesses. The company operates as an independent wireless carrier serving rural and suburban markets. It provides cellular network coverage, device sales, and customer support services.

Industry
Regional Telecommunications & Wireless Services
Address
2921 Enumclaw Rd, Port Orchard, WA 98367, United States
Employees
51-200
Founded
1992

Attack summary

Severity: high — SiegedSec is a known hacktivist/threat actor group with a history of confirmed data exfiltration and publication; the disclosed status is 'data_published', indicating actual data release rather than a mere listing, and telecommunications companies hold sensitive subscriber PII and network data at scale.

SiegedSec claims to have compromised Cellcom and published data from the attack, with the disclosure status indicating data has been released; no ransom demand was stated and the specific volume of exfiltrated data was not quantified in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • Telecommunications customer data
  • Internal company files

What the group claims

telecommunications

Sources

Source

Indexed 3 years ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About Siegedsec

SiegedSec is a relatively new threat actor that emerged in December 2023, primarily motivated by hacktivism with a strong focus on anti-Israeli sentiment rather than traditional financial gain through ransomware operations. The group appears to operate independently with suspected ideological motivations tied to pro-Palestinian activism, though their exact geographic origin remains unclear based on publicly available intelligence. Unlike traditional ransomware groups, SiegedSec appears to focus on data theft and public exposure of sensitive information rather than encryption-based extortion, primarily targeting Israeli government entities through opportunistic attacks that exploit web application vulnerabilities and exposed credentials. The group has maintained a relatively low profile with 19 documented victims, almost exclusively targeting Israeli government infrastructure in what appears to be coordinated ideological attacks rather than broad financial campaigns. Based on available reporting, SiegedSec remains active as of late 2023 and early 2024, continuing their focused campaign against Israeli targets through data exfiltration and public disclosure operations. The group has been linked to 19 public disclosures across our corpus. First observed on a leak site on December 8, 2023; most recent post December 9, 2023. The operation is currently inactive.

Timeline of this disclosure

  • December 8, 2023Cellcom listed by Siegedsecon the group's public leak site

Other recent disclosures by Siegedsec

Siegedsec has been linked to 19 public victims on Darkfield. A sample of the most recent:

See the full Siegedsec dossier →

Sector and geography

This disclosure adds to ransomware activity in the Telecommunications sector, which has 87 disclosures indexed across all operators we track. Geographically, Cellcom is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Siegedsec means Cellcom appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Report the incident to your national CERT, CISA (United States), as required for your jurisdiction.
  • Monitor for the data appearing on Siegedsec's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.