TDS®
Company Details
Linkedin ID:
-tds-
Website:
Employees number:
3,529
Number of followers:
10,800
NAICS:
517
Industry Type:
Homepage:
tdsinc.com
IP Addresses:
0
Company ID:
TDS_1711242
Scan Status:
In-progress
TDS® Company CyberSecurity Posture
tdsinc.com
Telephone and Data Systems (TDS) provides wireless products and services; cable and wireline broadband, TV and voice services to approximately 5.5 million customers nationwide. The TDS companies share a strong commitment to customer satisfaction by offering the highest-quality services and products and excellent customer support. UScellular® UScellular, headquartered in Chicago, IL, provides a comprehensive range of wireless services and products, excellent customer support, and a high-quality network to 5 million customers nationwide. UScellular is traded on the New York Stock Exchange under USM. TDS Telecommunications Corp.® TDS Telecommunications Corp., headquartered in Madison, WI, provides high-speed Internet, phone and TV entertainment services, as well as VoIP business solutions, to customers in rural, suburban and metropolitan communities nationwide. Suttle-Straus® Suttle-Straus provides comprehensive marketing solutions including creative design, mailing, fulfillment, distribution, displays, signage, promotional products, conventional and digital printing.
TDS® A.I CyberSecurity Scoring
TDS® Risk Score (AI oriented)Between 700 and 749
TDS®
Updated:
- Powered by our proprietary A.I cyber incident model
- Insurance preferes TPRM score to calculate premium
TDS® Global Score (TPRM)XXXX
TDS®
- Instant access to detailed risk factors
- Benchmark vs. industry & size peers
- Vulnerabilities
- Findings
TDS® Company CyberSecurity News & History
Past Incidents
1
Attack Types
1
Telephone and Data Systems, Inc.
Breach
Rankiteo Explanation
Attack with significant impact with internal employee data leaks
Description: The Maine Office of the Attorney General reported a data breach involving Telephone and Data Systems, Inc. on June 23, 2021. The breach occurred on January 20, 2021, due to an external system breach (hacking) affecting 99 individuals in total, including 9 residents. The compromised information included Social Security Numbers, and identity theft protection services were offered for 24 months through Experian.
TDS® Company Scoring based on AI Models
Cyber Incidents Likelihood 3 - 6 - 9 months
A.I Risk Score Likelihood 3 - 6 - 9 months
Underwriter Stats for TDS®
Incidents vs Telecommunications Industry Average (This Year)
No incidents recorded for TDS® in 2025.
Incidents vs All-Companies Average (This Year)
No incidents recorded for TDS® in 2025.
Incident Types TDS® vs Telecommunications Industry Avg (This Year)
No incidents recorded for TDS® in 2025.
Incident History — TDS® (X = Date, Y = Severity)
TDS® cyber incidents detection timeline including parent company and subsidiaries
TDS® Company Subsidiaries
Telephone and Data Systems (TDS) provides wireless products and services; cable and wireline broadband, TV and voice services to approximately 5.5 million customers nationwide. The TDS companies share a strong commitment to customer satisfaction by offering the highest-quality services and products and excellent customer support. UScellular® UScellular, headquartered in Chicago, IL, provides a comprehensive range of wireless services and products, excellent customer support, and a high-quality network to 5 million customers nationwide. UScellular is traded on the New York Stock Exchange under USM. TDS Telecommunications Corp.® TDS Telecommunications Corp., headquartered in Madison, WI, provides high-speed Internet, phone and TV entertainment services, as well as VoIP business solutions, to customers in rural, suburban and metropolitan communities nationwide. Suttle-Straus® Suttle-Straus provides comprehensive marketing solutions including creative design, mailing, fulfillment, distribution, displays, signage, promotional products, conventional and digital printing.
Loading...
TDS® Similar Companies
We understand that our customers want an easier, less complicated life. We’re using our network, labs, products, services, and people to create a world where everything works together seamlessly, and life is better as a result. How will we continue to drive for this excellence in innovation?
Telcel
Telcel (Radiomóvil Dipsa) es subsidiaria de América Móvil, uno de los mayores proveedores de comunicaciones celulares de Latinoamérica, grupo líder con inversiones en telecomunicaciones en varios países del continente americano. Telcel es la empresa de telefonía celular líder en México. Nuestra s
Free
Trublion historique des Télécoms, Free reste un opérateur pas comme les autres. Nous continuons de nous distinguer de nos concurrents par nos produits, par notre politique tarifaire ou encore par le ton employé avec nos abonnés. Cette différence a aussi construit la grande entreprise que nous somme
Cox Communications is committed to creating more moments of real human connection. We bring people closer to family and friends through technology that’s inspired by a culture that puts people first, and we’re always working to improve life in the communities we serve. Our world-class broadband appl
We are driving the digital transition of Italy and Brazil with innovative technologies and services because we want to contribute to accelerating the sustainable growth of the economy and society by bringing value and prosperity to people, companies and institutions. We offer diversified solutions
yes
תכירו את השחקנים הראשיים שלנו: העובדות והעובדים. אנחנו לא עובדים עם תסריט קבוע, חושבים מחוץ לקופסא, ומייצרים ז'אנר משלנו. כש-יס קמה, בשנת 1998, הבאנו את בשורת הלווין אל עולם שידורי הטלוויזיה והיינו הראשונים להציע שידורים דיגיטליים ושירותי טלוויזיה אינטראקטיביים - כשבחירת התכנים היא בידיים של הלקוח
Safaricom PLC
Safaricom is the leading provider of converged communication solutions in Kenya. In addition to providing a broad range of first-class products and services for Telephony, Broadband Internet and Financial services, Safaricom seeks to uplift the welfare of Kenyans through value-added services and sup
Airtel Africa
Airtel Africa is a leading provider of telecommunications and mobile money services, with a presence in 14 countries in Africa, primarily in East Africa and Central and West Africa. Airtel Africa offers an integrated suite of telecommunications solutions to its subscribers, including mobile voice a
Orange is one of the world’s leading telecommunications operators with revenues of 40.3 billion euros in 2024 and 127,000 employees worldwide at 31 December 2024, including 71,000 employees in France. The Group has a total customer base of 291 million customers worldwide at 31 December 2024, inclu
.png)
TDS® CyberSecurity News
December 01, 2025 08:00 AM
India's Big Move: New Phones with Non-Removable Government Cybersecurity App
India's Telecom Ministry has issued an order that all new smartphones sold in India must come pre-installed with a government-developed...
November 25, 2025 07:48 AM
Powers to protect us from cyber attacks ‘go too far’
Proposed emergency powers aimed at protecting the State from cyber attacks by shutting down computer servers would “deter” foreign...
October 02, 2025 07:00 AM
Lamborghini Wants To Crank Up the ‘Crazy’ on Stuff Like Off-Road Supercars: TDS
Lamborghini's sales and marketing chief indicated that the off-road Huracan Sterrato was only the beginning of novel supercars.
September 18, 2025 07:00 AM
'Vane Viper' Threat Group Tied to PropellerAds, Commercial Entities
Researchers say the commercial adtech platform and several other companies form the infrastructure of a massive cybercrime operation.
September 12, 2025 07:00 AM
Letters: No affordability crisis | School times must adjust | On TDS | Cybersecurity by teens | Of course Cook's opens after we move
Also: We did it – together! | Volunteers to help seniors | To those who cry Marxist | We must protect our forests | Ban 'steer tailing'.
September 02, 2025 07:00 AM
WordPress Woes Continue Amid ClickFix Attacks, TDS Threats
Vulnerable and malicious plug-ins give threat actors the ability to compromise WordPress sites and use them as a springboard to a variety of...
August 26, 2025 07:00 AM
ShadowCaptcha Exploits WordPress Sites to Spread Ransomware, Info Stealers, and Crypto Miners
ShadowCaptcha exploits 100+ WordPress sites since Aug 2025, spreading ransomware, stealers, and miners worldwide.
August 24, 2025 07:00 AM
Weekly Cybersecurity News Recap : Apple 0-day, Chrome, Copilot Vulnerabilities and Cyber Attacks
This past week was packed with high-severity disclosures and active exploitation reports across the global threat landscape.
August 22, 2025 07:00 AM
Exploiting Trusted Sources - TDS Uses Authentic PHP Templates to Deploy Fake Microsoft Windows Security Alerts
Fake Windows Alerts - GoDaddy Security researchers have uncovered a sophisticated Traffic Direction System (TDS) operation.
Frequently Asked Questions
Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.
TDS® CyberSecurity History Information
Official Website of TDS®
The official website of TDS® is http://www.tdsinc.com.
TDS®’s AI-Generated Cybersecurity Score
According to Rankiteo, TDS®’s AI-generated cybersecurity score is 749, reflecting their Moderate security posture.
How many security badges does TDS®’ have ?
According to Rankiteo, TDS® currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.
Does TDS® have SOC 2 Type 1 certification ?
According to Rankiteo, TDS® is not certified under SOC 2 Type 1.
Does TDS® have SOC 2 Type 2 certification ?
According to Rankiteo, TDS® does not hold a SOC 2 Type 2 certification.
Does TDS® comply with GDPR ?
According to Rankiteo, TDS® is not listed as GDPR compliant.
Does TDS® have PCI DSS certification ?
According to Rankiteo, TDS® does not currently maintain PCI DSS compliance.
Does TDS® comply with HIPAA ?
According to Rankiteo, TDS® is not compliant with HIPAA regulations.
Does TDS® have ISO 27001 certification ?
According to Rankiteo,TDS® is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.
Industry Classification of TDS®
TDS® operates primarily in the Telecommunications industry.
Number of Employees at TDS®
TDS® employs approximately 3,529 people worldwide.
Subsidiaries Owned by TDS®
TDS® presently has no subsidiaries across any sectors.
TDS®’s LinkedIn Followers
TDS®’s official LinkedIn profile has approximately 10,800 followers.
NAICS Classification of TDS®
TDS® is classified under the NAICS code 517, which corresponds to Telecommunications.
TDS®’s Presence on Crunchbase
Yes, TDS® has an official profile on Crunchbase, which can be accessed here: https://www.crunchbase.com/organization/telephone-and-data-systems.
TDS®’s Presence on LinkedIn
Yes, TDS® maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/-tds-.
Cybersecurity Incidents Involving TDS®
As of December 18, 2025, Rankiteo reports that TDS® has experienced 1 cybersecurity incidents.
Number of Peer and Competitor Companies
TDS® has an estimated 9,750 peer or competitor companies worldwide.
What types of cybersecurity incidents have occurred at TDS® ?
Incident Types: The types of cybersecurity incidents that have occurred include Breach.
How does TDS® detect and respond to cybersecurity incidents ?
Detection and Response: The company detects and responds to cybersecurity incidents through an third party assistance with experian, and remediation measures with identity theft protection services offered for 24 months..
Incident Details
Can you provide details on each incident ?
Title: Data Breach at Telephone and Data Systems, Inc.
Description: The Maine Office of the Attorney General reported a data breach involving Telephone and Data Systems, Inc. on June 23, 2021. The breach occurred on January 20, 2021, due to an external system breach (hacking) affecting 99 individuals in total, including 9 residents. The compromised information included Social Security Numbers, and identity theft protection services were offered for 24 months through Experian.
Date Detected: 2021-01-20
Date Publicly Disclosed: 2021-06-23
Type: Data Breach
Attack Vector: External System Breach (Hacking)
What are the most common types of attacks the company has faced ?
Common Attack Types: The most common types of attacks the company has faced is Breach.
Impact of the Incidents
What was the impact of each incident ?
Incident : Data Breach -TD224072525
Data Compromised: Social security numbers
Identity Theft Risk: High
What types of data are most commonly compromised in incidents ?
Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Social Security Numbers.
Which entities were affected by each incident ?
Incident : Data Breach -TD224072525
Entity Name: Telephone and Data Systems, Inc.
Entity Type: Company
Industry: Telecommunications
Customers Affected: 99
Response to the Incidents
What measures were taken in response to each incident ?
Incident : Data Breach -TD224072525
Third Party Assistance: Experian.
Remediation Measures: Identity theft protection services offered for 24 months
How does the company involve third-party assistance in incident response ?
Third-Party Assistance: The company involves third-party assistance in incident response through Experian, .
Data Breach Information
What type of data was compromised in each breach ?
Incident : Data Breach -TD224072525
Type of Data Compromised: Social Security Numbers
Number of Records Exposed: 99
Sensitivity of Data: High
Personally Identifiable Information: Social Security Numbers
What measures does the company take to prevent data exfiltration ?
Prevention of Data Exfiltration: The company takes the following measures to prevent data exfiltration: Identity theft protection services offered for 24 months, .
References
Where can I find more information about each incident ?
Incident : Data Breach -TD224072525
Source: Maine Office of the Attorney General
Date Accessed: 2021-06-23
Where can stakeholders find additional resources on cybersecurity best practices ?
Additional Resources: Stakeholders can find additional resources on cybersecurity best practices at and Source: Maine Office of the Attorney GeneralDate Accessed: 2021-06-23.
Post-Incident Analysis
What is the company's process for conducting post-incident analysis ?
Post-Incident Analysis Process: The company's process for conducting post-incident analysis is described as Experian, .
Additional Questions
Incident Details
What was the most recent incident detected ?
Most Recent Incident Detected: The most recent incident detected was on 2021-01-20.
What was the most recent incident publicly disclosed ?
Most Recent Incident Publicly Disclosed: The most recent incident publicly disclosed was on 2021-06-23.
Impact of the Incidents
What was the most significant data compromised in an incident ?
Most Significant Data Compromised: The most significant data compromised in an incident were Social Security Numbers and .
Response to the Incidents
What third-party assistance was involved in the most recent incident ?
Third-Party Assistance in Most Recent Incident: The third-party assistance involved in the most recent incident was experian, .
Data Breach Information
What was the most sensitive data compromised in a breach ?
Most Sensitive Data Compromised: The most sensitive data compromised in a breach was Social Security Numbers.
What was the number of records exposed in the most significant breach ?
Number of Records Exposed in Most Significant Breach: The number of records exposed in the most significant breach was 99.0.
References
What is the most recent source of information about an incident ?
Most Recent Source: The most recent source of information about an incident is Maine Office of the Attorney General.
.png)
Latest Global CVEs (Not Company-Specific)
Description
Nagios XI versions prior to 2026R1.1 are vulnerable to local privilege escalation due to an unsafe interaction between sudo permissions and application file permissions. A user‑accessible maintenance script may be executed as root via sudo and includes an application file that is writable by a lower‑privileged user. A local attacker with access to the application account can modify this file to introduce malicious code, which is then executed with elevated privileges when the script is run. Successful exploitation results in arbitrary code execution as the root user.
Risk Information
cvss4
Base: 8.6
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Description
Out of bounds read and write in V8 in Google Chrome prior to 143.0.7499.147 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Description
Use after free in WebGPU in Google Chrome prior to 143.0.7499.147 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Description
SIPGO is a library for writing SIP services in the GO language. Starting in version 0.3.0 and prior to version 1.0.0-alpha-1, a nil pointer dereference vulnerability is in the SIPGO library's `NewResponseFromRequest` function that affects all normal SIP operations. The vulnerability allows remote attackers to crash any SIP application by sending a single malformed SIP request without a To header. The vulnerability occurs when SIP message parsing succeeds for a request missing the To header, but the response creation code assumes the To header exists without proper nil checks. This affects routine operations like call setup, authentication, and message handling - not just error cases. This vulnerability affects all SIP applications using the sipgo library, not just specific configurations or edge cases, as long as they make use of the `NewResponseFromRequest` function. Version 1.0.0-alpha-1 contains a patch for the issue.
Risk Information
cvss4
Base: 8.7
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Description
GLPI is a free asset and IT management software package. Starting in version 9.1.0 and prior to version 10.0.21, an unauthorized user with an API access can read all knowledge base entries. Users should upgrade to 10.0.21 to receive a patch.
Risk Information
cvss3
Base: 6.5
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Access Data Using Our API
Get company history
curl -i -X GET 'https://api.rankiteo.com/underwriter-getcompany-history?linkedin_id=-tds-' -H 'apikey: YOUR_API_KEY_HERE'
RapidWhat Do We Measure ?
Incident
Finding
Grade
Digital Assets
Every week, Rankiteo analyzes billions of signals to give organizations a sharper, faster view of emerging risks. With deeper, more actionable intelligence at their fingertips, security teams can outpace threat actors, respond instantly to Zero-Day attacks, and dramatically shrink their risk exposure window.
These are some of the factors we use to calculate the overall score:
Network Security
Identify exposed access points, detect misconfigured SSL certificates, and uncover vulnerabilities across the network infrastructure.
SBOM (Software Bill of Materials)
Gain visibility into the software components used within an organization to detect vulnerabilities, manage risk, and ensure supply chain security.
CMDB (Configuration Management Database)
Monitor and manage all IT assets and their configurations to ensure accurate, real-time visibility across the company's technology environment.
Threat Intelligence
Leverage real-time insights on active threats, malware campaigns, and emerging vulnerabilities to proactively defend against evolving cyberattacks.
Rankiteo is a unified scoring and risk platform that analyzes billions of signals weekly to help organizations gain faster, more actionable insights into emerging threats. Empowering teams to outpace adversaries and reduce exposure.
