What is the official website of CenturyLink ?

The official website of CenturyLink is http://www.centurylink.com.

What is CenturyLink's cybersecurity risk score?

CenturyLink has an AI-generated cybersecurity risk score of 765 out of 1000, indicating a Fair security posture according to Rankiteo's assessment.

How many security incidents has CenturyLink experienced?

According to Rankiteo, CenturyLink currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.

Has CenturyLink been affected by any supply chain cyber incidents ?

According to Rankiteo, CenturyLink has not been affected by any supply chain cyber incidents, and no incident IDs are currently listed for the organization.

Does CenturyLink have SOC 2 Type 1 certification ?

According to Rankiteo, CenturyLink is not certified under SOC 2 Type 1.

Does CenturyLink have SOC 2 Type 2 certification ?

According to Rankiteo, CenturyLink does not hold a SOC 2 Type 2 certification.

Does CenturyLink comply with GDPR ?

According to Rankiteo, CenturyLink is not listed as GDPR compliant.

Does CenturyLink have PCI DSS certification ?

According to Rankiteo, CenturyLink does not currently maintain PCI DSS compliance.

Does CenturyLink comply with HIPAA ?

According to Rankiteo, CenturyLink is not compliant with HIPAA regulations.

Does CenturyLink have ISO 27001 certification ?

According to Rankiteo,CenturyLink is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.

Which industry does CenturyLink operate in ?

CenturyLink operates primarily in the IT Services and IT Consulting industry.

How many employees does CenturyLink have ?

CenturyLink employs approximately 24,214 people worldwide.

Does CenturyLink own any subsidiaries ?

CenturyLink presently has no subsidiaries across any sectors.

How many LinkedIn followers does CenturyLink have ?

CenturyLink's official LinkedIn profile has approximately 230,947 followers.

What is the NAICS classification code for CenturyLink ?

CenturyLink is classified under the NAICS code 5415, which corresponds to Computer Systems Design and Related Services.

Does CenturyLink have a Crunchbase profile ?

No, CenturyLink does not have a profile on Crunchbase.

Does CenturyLink have a LinkedIn profile ?

Yes, CenturyLink maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/centurylink.

How many cybersecurity incidents has CenturyLink experienced ?

As of July 7, 2026, Rankiteo reports that CenturyLink has experienced 3 cybersecurity incidents.

How many peer or competitor companies does CenturyLink have ?

CenturyLink has an estimated 40,941 peer or competitor companies worldwide.

What types of cybersecurity incidents has CenturyLink faced ?

Incident Types: The types of cybersecurity incidents that have occurred include Breach, Ransomware and Data Leak.

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CenturyLink

Boost Score +25 with badge (5 left)

765

/1000

Fair

790

/1000

Fair

CenturyLink Vendor Cyber Rating & Cyber Score

centurylink.com

Add Your Compliance Badge

CenturyLink (NYSE: CTL) is a technology leader delivering hybrid networking, cloud connectivity, and security solutions to customers around the world. Through its extensive global fiber network, CenturyLink provides secure and reliable services to meet the growing digital demands of businesses and consumers. CenturyLink strives to be the trusted connection to the networked world and is focused on delivering technology that enhances the customer experience. Learn more at http://news.centurylink.com/.

CenturyLink A.I CyberSecurity Scoring

Scoring History

CenturyLink

CenturyLink CyberSecurity News & History

Past Incidents

Attack Types

Entity

Type

Severity

Impact

Seen

Blog Details

Supply Chain Source

Incident Details

View

CenturyLink

Ransomware

03/2023

LUM33321023

CenturyLink

Breach

8/2020

LEV801082025

CenturyLink

Data Leak

10/2019

CEN32023423

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A.I.

CenturyLink Company Scoring based on AI Models

Cyber Incidents Likelihood 3 - 6 - 9 months

Actual

Prediction

Incident Predictions locked

Access Monitoring Plan

A.I Risk Score Likelihood 3 - 6 - 9 months

Actual

Prediction A

Prediction B

Prediction C

Prediction D

A.I. Risk Score Predictions locked

Access Monitoring Plan

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Underwriter Stats for CenturyLink

Incidents vs IT Services and IT Consulting Industry Avg (This Year)

No incidents recorded for CenturyLink in 2026.

Incidents vs All-Companies Average (This Year)

No incidents recorded for CenturyLink in 2026.

Incident Types CenturyLink vs IT Services and IT Consulting Industry Avg (This Year)

No incidents recorded for CenturyLink in 2026.

Incident History - CenturyLink (X = Date, Y = Severity)

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SUBSIDIARY

CenturyLink Subsidiaries

CenturyLink

IT Services and IT Consulting

Website: http://www.centurylink.com

Company Size: 10,001+ employees

Lumen TechnologiesTelecommunications

Level 3 CommunicationsTelecommunications

tw telecomTelecommunications

CenturyLink Business for EnterpriseIT Services and IT Consulting

CenturyLink BusinessTelecommunications

SEAL Consulting IncIT Services and IT Consulting

Lumen Technologies Asia PacificIT Services and IT Consulting

Black Lotus LabsComputer and Network Security

Quantum FiberTechnology, Information and Internet

Lumen 中国信息技术和服务

Lumen Public SectorIT Services and IT Consulting

Lumen JapanITサービス・ITコンサルティング

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CenturyLink Similar Companies

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Hitachi

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For over 100 years, Hitachi has been committed to developing innovations that improve lives. Today, this means creating superior technology and products that balance environment, well-being, and economic growth. We integrate IT, operational technology (OT), and products to transform critical infrastructure and industrial systems. Through Hitachi’s process for creating value from data, which we call Lumada, we combine rich industry insight and infrastructure expertise to create measurable, positive change. We operate across four global sectors – Digital Systems & Services, Energy, Mobility, and Connective Industries – plus a Strategic Social Innovation Business Unit developing next-generation solutions. With over 280,000 employees across 618 consolidated subsidiaries in over 140 countries, we partner with our customers to create a harmonized society and build what’s next for people and planet.

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cb lenovo.com

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cb kyndryl.com

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Engineering Group is the Digital Transformation Company, leader in Italy and expanding its global footprint, with around 14,000 associates and with over 80 offices spread across Europe, the United States, and South America and global delivery. The Engineering Group, consisting of over 70 companies in 21 countries, has been supporting the continuous evolution of companies and organizations for more than 40 years, thanks to a deep understanding of business processes in all market segments, fully leveraging the opportunities offered by advanced digital technologies and proprietary solutions. It integrates best-of-breed market solutions, managed services, and continues to expand its expertise through M&As and partnerships with leading technology players. The Group strongly invests both in innovation, through its R&I division, and in human capital, with the internal IT & Management Academy. Engineering is a key player in the creation of digital ecosystems that bridge the gap between different markets, while developing composable solutions that ultimately foster a continuous Business transformation. In 2026, Engineering achieved, for the second consecutive year, the Top Employers Italy certification, reaffirming the significant growth process for the company, which is constantly committed to enhancing HR policies to create a work environment centered on the well-being of people.

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NEWS

CenturyLink CyberSecurity News

Latest updates, reports, and threat intel affecting the global network.

January 07, 2026 08:00 AM

One million customers on alert as extortion group claims massive Brightspeed data haul

The Crimson Collective claims to have stolen data on more than a million Brightspeed customers. The broadband provider is investigating.

Read Article

January 05, 2026 08:00 AM

25 Best Managed Security Service Providers (MSSP) In 2026

Managed Security Service Providers (MSSPs) specialize in outsourced cyber defense, shielding firms from relentless threats.

Read Article

October 31, 2025 07:00 AM

US telco confirms hackers breached systems in stealthy state-backed cyber campaign – and remained undetected for nearly a year

State-sponsored hackers breached the systems of US telecoms services firm Ribbon Communications, and stayed undetected for nearly a year.

Read Article

October 31, 2025 07:00 AM

Telecom provider Ribbon Communications reports nation-state hack

Cyberattack on the telecom supply chain compared to May 2021 Colonial pipeline attack.

Read Article

October 31, 2025 07:00 AM

Lumen Technologies (LUMN) Q3 2025 Earnings Call Transcript

The company changed its name from CenturyLink to Lumen Technologies in 2020 and now operates under the Lumen, Quantum Fiber, CenturyLink,...

Read Article

October 29, 2025 07:00 AM

Major telecom supplier compromised by unnamed nation-state attackers

Nation-state snoops broke into Ribbon Communications – an outfit that provides software and networking gear to Verizon, CenturyLink,...

Read Article

October 27, 2025 07:00 AM

DCM Services Names Curtis Rebelein as Chief Information Security Officer

Rebelein will lead efforts to fortify DCM Services' security posture, regulatory compliance, and risk management strategies.

Read Article

August 18, 2025 07:00 AM

Why Clearance Holders Get Rejected for Jobs – Even When They Have the Right Skills

Sometimes the biggest setbacks in a cleared job search come down to the smallest details. Stephanie Holman, a technical recruiter at...

Read Article

July 23, 2025 07:00 AM

Cloudflare report reveals surge in internet shutdowns & outages

Cloudflare's Q2 2025 report reveals a sharp rise in global internet shutdowns from government actions, outages, cable damage and...

Read Article

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CVE

Latest

Global CVEs (Not Company-Specific)

CVE-2026-53646

SUMMARY

FOSSBilling is a free, open-source billing and client management system. In versions 0.5.6 through 0.7.2, when a `ClientPasswordReset` record already exists for a client (from a previous unexpired reset request), subsequent calls to the `reset_password` guest API endpoint reuse the existing token instead of generating a new one. The 15-minute validity window is anchored to the first request's `created_at` timestamp, not the time of the most recent email. An attacker who obtained the original reset link remains able to use it even after the victim requests a new reset, because the original token is never invalidated or rotated. Version 0.8.0 patches the issue. Some workarounds are available. Configure a reverse proxy (e.g., Nginx, Apache, Cloudflare) to apply per-IP rate limiting to the `/client/reset-password` endpoint to minimize the window of opportunity, and/or manually clear expired `client_password_reset` records from the database after a client reports a suspected compromise.

Published

Date2026-07-06

Updated

Date2026-07-06

RISK INFORMATION (Score: )

cvss4

Base Score: 7.7

Complexity: HIGH

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/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

Impact Score

Exploitability

REFERENCES

https://github.com/FOSSBilling/FOSSBilling/security/advisories/GHSA-vp66-w6rc-x32p

CVE-2026-53645

SUMMARY

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 allow a low-privileged staff account to grant arbitrary module permissions to itself through the admin API, resulting in persistent privilege escalation. A staff user that only has `staff.create_and_edit_staff` can call `/api/admin/staff/permissions_update` targeting their own account and write any permission structure, bypassing the intended role-based access control boundary. Version 0.8.0 patches the issue. Some workarounds are available. Restrict the `staff.create_and_edit_staff` permission to only highly trusted staff members and/or use a reverse proxy or WAF to restrict access to `/api/admin/staff/permissions_update` to specific trusted roles.

Published

Date2026-07-06

Updated

Date2026-07-06

RISK INFORMATION (Score: )

cvss4

Base Score: 8.5

Complexity: LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:L/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

Impact Score

Exploitability

REFERENCES

https://github.com/FOSSBilling/FOSSBilling/security/advisories/GHSA-4hf7-xxxw-64rm

CVE-2026-53644

SUMMARY

FOSSBilling is a free, open-source billing and client management system. Versions 0.5.3 through 0.7.2 allow authenticated clients to both read and reset API key service secrets for orders that are no longer in an `active` state (e.g., `suspended`, `canceled`). The root cause is missing order-state validation in two client API endpoints, despite an `isActive()` helper already existing in the `Serviceapikey` module and the frontend UI correctly gating access on `order.status == 'active'`. Version 0.8.0 contains a fix. Some workarounds are available. If the `Serviceapikey` module is not needed, uninstall it to remove the affected endpoints. One may also use a reverse proxy or WAF to restrict access to `/api/client/order/service` and `/api/client/serviceapikey/reset` based on application-level order-state logic.

Published

Date2026-07-06

Updated

Date2026-07-06

RISK INFORMATION (Score: )

cvss4

Base Score: 8.6

Complexity: LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/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

Impact Score

Exploitability

REFERENCES

https://github.com/FOSSBilling/FOSSBilling/security/advisories/GHSA-qf6j-vq68-qmfh

CVE-2026-53643

SUMMARY

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 allow low-privileged staff accounts to perform unauthorized actions via admin API endpoints. The root cause is a combination of the `can_always_access` module flag (which grants all staff access to certain modules) and insufficient permission checks or unsafe parameter handling on individual endpoints. Version 0.8.0 contains a fix. Some workarounds are available. Restrict staff accounts to only those who need access to sensitive settings and/or use a reverse proxy or WAF to restrict access to the affected endpoints to trusted IP addresses or higher-privilege roles.

Published

Date2026-07-06

Updated

Date2026-07-06

RISK INFORMATION (Score: )

cvss4

Base Score: 8.7

Complexity: LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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

Impact Score

Exploitability

REFERENCES

https://github.com/FOSSBilling/FOSSBilling/security/advisories/GHSA-563q-g4r4-6f9m

CVE-2026-53642

SUMMARY

FOSSBilling is a free, open-source billing and client management system. In versions 0.5.6 through 0.7.2, when the "Require Email Confirmation" setting is enabled, a logged-in client with an unverified email address (`email_approved = 0`) can access all client-area pages (e.g. `/client/balance`, `/client/order/list`, `/client/invoice`) and read real account data, including wallet balances and transaction history. The API-side enforcement correctly restricts unverified clients to only profile-related endpoints, but the page-side enforcement is overly permissive, allowing any request whose path starts with `/client`. Version 0.8.0 contains a fix. No known workarounds that don't involve modifying the source code are available.

Published

Date2026-07-06

Updated

Date2026-07-06

RISK INFORMATION (Score: )

cvss4

Base Score: 5.3

Complexity: LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/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

Impact Score

Exploitability

REFERENCES

https://github.com/FOSSBilling/FOSSBilling/security/advisories/GHSA-7v47-rh46-w923

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Network SecurityIdentify 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.

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