Comparison Overview

Nippon Telegraph and Telephone

VS

Telmex

Nippon Telegraph and Telephone

East Tower, 5-1, Otemachi 1-Chome, Chiyoda-ku, Tokyo, None, Tokyo, Tokyo, JP, 100-8116
Last Update: 2025-12-11

Nippon Telegraph and Telephone The Japan Telegraph and Telephone Corporation is a Japanese telecommunications company headquartered in Tokyo, Japan. Wikipedia Stock price: 9432 (TYO) JP¥ 5,170 -137.00 (-2.58%) Revenue: 11.39 lakh crores JPY (2017) CEO: Hiroo Unoura (Jun 2012–) Headquarters: Chiyoda, Tokyo, Japan Number of employees: 2,74,844 (2016) Nippon Telegraph & Tel is the fourth-largest telephone operating company by total revenue ($94.2 B USD). The Japan Telegraph and Telephone Corporation (日本電信電話株式会社 Nippon Denshin Denwa Kabushiki-gaisha), is a Japanese telecommunications company headquartered in Tokyo, Japan. Ranked 65th in Fortune Global 500, Nippon Telegraph and Telephone is the fourth largest telecommunications company in the world in terms of revenue. The company is incorporated pursuant to the Nippon Telegraph and Telephone Law (Law Concerning Japan Telegraph and Telephone Corporation, Etc.).[3] The purpose of the company defined by the Law is to own all the shares issued by Japan Telegraph and Telephone East Corporation (Nippon Telegraph and Telephone East) and Japan Telegraph and Telephone West Corporation (Nippon Telegraph and Telephone West) and to ensure proper and stable provision of telecommunications services all over Japan including remote rural areas by these companies as well as to conduct research relating to the telecommunications technologies that will form the foundation for telecommunications. While Nippon Telegraph and Telephone is listed on Tokyo, Osaka, New York, and London stock exchanges, the Japanese government still owns roughly one-third of Nippon Telegraph and Telephone's shares, regulated by the Nippon Telegraph and Telephone Law.

NAICS: 517
NAICS Definition: Telecommunications
Employees: 125
Subsidiaries: 0
12-month incidents
0
Known data breaches
1
Attack type number
1

Telmex

Parque Vía 190, Ciudad de México, México, 06500, MX
Last Update: 2025-12-09
Between 750 and 799

TELMEX, la empresa líder de telecomunicaciones y servicios TI en México, ha realizado importantes inversiones para desarrollar la plataforma tecnológica más robusta y vanguardista del país, que le permite ofrecer la más amplia gama de soluciones, con los mayores estándares de calidad, seguridad, confiabilidad y competitividad; por ello, es el mejor socio estratégico en servicios avanzados de telecomunicaciones y TI. Las Soluciones TI de TELMEX van desde la Conectividad hasta Servicios de Nube, Centros de Datos, Ciberseguridad, Colaboración y Soluciones de Negocio. Un portafolio enfocado a cubrir las necesidades y proporcionar atención en infraestructura y procesos, lo que permite a los clientes aprovechar al máximo su inversión en tecnología, mientras evolucionan hacia nuevos sistemas y plataformas como servicio. TELMEX permite desarrollar e implementar proyectos en empresas de cualquier tamaño y en cualquier vertical de industria, ofreciendo soluciones integrales, innovadoras y de clase mundial, a través de tecnología de punta; brindando conectividad soportada por la mayor cobertura nacional e internacional y anchos de banda que garantizan la continuidad de las operaciones de sus clientes.

NAICS: 517
NAICS Definition: Telecommunications
Employees: 13,261
Subsidiaries: 0
12-month incidents
0
Known data breaches
0
Attack type number
0

Compliance Badges Comparison

Security & Compliance Standards Overview

https://images.rankiteo.com/companyimages/nippon-telegraph-and-telephone.jpeg
Nippon Telegraph and Telephone
ISO 27001
ISO 27001 certification not verified
Not verified
SOC2 Type 1
SOC2 Type 1 certification not verified
Not verified
SOC2 Type 2
SOC2 Type 2 certification not verified
Not verified
GDPR
GDPR certification not verified
Not verified
PCI DSS
PCI DSS certification not verified
Not verified
HIPAA
HIPAA certification not verified
Not verified
https://images.rankiteo.com/companyimages/telmex.jpeg
Telmex
ISO 27001
ISO 27001 certification not verified
Not verified
SOC2 Type 1
SOC2 Type 1 certification not verified
Not verified
SOC2 Type 2
SOC2 Type 2 certification not verified
Not verified
GDPR
GDPR certification not verified
Not verified
PCI DSS
PCI DSS certification not verified
Not verified
HIPAA
HIPAA certification not verified
Not verified
Compliance Summary
Nippon Telegraph and Telephone
100%
Compliance Rate
0/4 Standards Verified
Telmex
0%
Compliance Rate
0/4 Standards Verified

Benchmark & Cyber Underwriting Signals

Incidents vs Telecommunications Industry Average (This Year)

No incidents recorded for Nippon Telegraph and Telephone in 2025.

Incidents vs Telecommunications Industry Average (This Year)

No incidents recorded for Telmex in 2025.

Incident History — Nippon Telegraph and Telephone (X = Date, Y = Severity)

Nippon Telegraph and Telephone cyber incidents detection timeline including parent company and subsidiaries

Incident History — Telmex (X = Date, Y = Severity)

Telmex cyber incidents detection timeline including parent company and subsidiaries

Notable Incidents

Last 3 Security & Risk Events by Company

https://images.rankiteo.com/companyimages/nippon-telegraph-and-telephone.jpeg
Nippon Telegraph and Telephone
Incidents

Date Detected: 05/2020
Type:Breach
Attack Vector: Internal Network Access
Motivation: Data Theft
Blog: Blog
https://images.rankiteo.com/companyimages/telmex.jpeg
Telmex
Incidents

No Incident

FAQ

Nippon Telegraph and Telephone company demonstrates a stronger AI Cybersecurity Score compared to Telmex company, reflecting its advanced cybersecurity posture governance and monitoring frameworks.

Nippon Telegraph and Telephone company has historically faced a number of disclosed cyber incidents, whereas Telmex company has not reported any.

In the current year, Telmex company and Nippon Telegraph and Telephone company have not reported any cyber incidents.

Neither Telmex company nor Nippon Telegraph and Telephone company has reported experiencing a ransomware attack publicly.

Nippon Telegraph and Telephone company has disclosed at least one data breach, while the other Telmex company has not reported such incidents publicly.

Neither Telmex company nor Nippon Telegraph and Telephone company has reported experiencing targeted cyberattacks publicly.

Neither Nippon Telegraph and Telephone company nor Telmex company has reported experiencing or disclosing vulnerabilities publicly.

Neither Nippon Telegraph and Telephone nor Telmex holds any compliance certifications.

Neither company holds any compliance certifications.

Neither Nippon Telegraph and Telephone company nor Telmex company has publicly disclosed detailed information about the number of their subsidiaries.

Telmex company employs more people globally than Nippon Telegraph and Telephone company, reflecting its scale as a Telecommunications.

Neither Nippon Telegraph and Telephone nor Telmex holds SOC 2 Type 1 certification.

Neither Nippon Telegraph and Telephone nor Telmex holds SOC 2 Type 2 certification.

Neither Nippon Telegraph and Telephone nor Telmex holds ISO 27001 certification.

Neither Nippon Telegraph and Telephone nor Telmex holds PCI DSS certification.

Neither Nippon Telegraph and Telephone nor Telmex holds HIPAA certification.

Neither Nippon Telegraph and Telephone nor Telmex holds GDPR certification.

Latest Global CVEs (Not Company-Specific)

Description

A weakness has been identified in itsourcecode Online Pet Shop Management System 1.0. This vulnerability affects unknown code of the file /pet1/addcnp.php. This manipulation of the argument cnpname causes sql injection. The attack can be initiated remotely. The exploit has been made available to the public and could be exploited.

Risk Information
cvss2
Base: 7.5
Severity: LOW
AV:N/AC:L/Au:N/C:P/I:P/A:P
cvss3
Base: 7.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
cvss4
Base: 6.9
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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

A security flaw has been discovered in Tenda AX9 22.03.01.46. This affects the function image_check of the component httpd. The manipulation results in use of weak hash. It is possible to launch the attack remotely. A high complexity level is associated with this attack. It is indicated that the exploitability is difficult. The exploit has been released to the public and may be exploited.

Risk Information
cvss2
Base: 2.6
Severity: HIGH
AV:N/AC:H/Au:N/C:N/I:P/A:N
cvss3
Base: 3.7
Severity: HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
cvss4
Base: 6.3
Severity: HIGH
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/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

A weakness has been identified in code-projects Student File Management System 1.0. This issue affects some unknown processing of the file /admin/update_student.php. This manipulation of the argument stud_id causes sql injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be exploited.

Risk Information
cvss2
Base: 7.5
Severity: LOW
AV:N/AC:L/Au:N/C:P/I:P/A:P
cvss3
Base: 7.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
cvss4
Base: 6.9
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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

A security flaw has been discovered in code-projects Student File Management System 1.0. This vulnerability affects unknown code of the file /admin/save_user.php. The manipulation of the argument firstname results in sql injection. The attack can be executed remotely. The exploit has been released to the public and may be exploited.

Risk Information
cvss2
Base: 7.5
Severity: LOW
AV:N/AC:L/Au:N/C:P/I:P/A:P
cvss3
Base: 7.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
cvss4
Base: 6.9
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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

A vulnerability was identified in code-projects Student File Management System 1.0. This affects an unknown part of the file /admin/update_user.php. The manipulation of the argument user_id leads to sql injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

Risk Information
cvss2
Base: 7.5
Severity: LOW
AV:N/AC:L/Au:N/C:P/I:P/A:P
cvss3
Base: 7.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
cvss4
Base: 6.9
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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