Comparison Overview

Telstra

VS

Telmex

Telstra

400 George St, Sydney, NSW, AU, 2000
Last Update: 2026-04-02
View Profile
Between 700 and 749
https://www.telstra.com.au/careers

We believe it’s people who give purpose to our technology. So we’re committed to staying close to our customers and providing them the best experience. And delivering the best tech. On the best network. Because our purpose is to build a connected future so everyone can thrive. We build technology and content solutions that are simple and easy to use, including Australia’s largest and fastest national mobile network. That’s why we strive to serve and know our customers better than anyone else – offering a choice of not just digital connection, but digital content as well. And that’s why we have an international presence spanning 15 countries, including China. In the 21st century, opportunity belongs to connected businesses, governments, communities and individuals. As Australia’s leading telecommunications and information services company, Telstra is proud to be helping our customers improve the ways in which they live and work through connection. Be first to know about Telstra news, advice and offers, as well as updates on our people and partners: tel.st/subscribe

NAICS: 517
NAICS Definition: Telecommunications
Employees: 35,254
Subsidiaries: 5
12-month incidents
0
Known data breaches
2
Attack type number
4
View Profile

Telmex

Parque Vía 190, Ciudad de México, 06500, MX
Last Update: 2026-04-02
Between 750 and 799
http://www.telmex.com

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: 14,046
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/telstra.jpeg
Telstra
—
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
Telstra
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 Telstra in 2026.

Incidents vs Telecommunications Industry Average (This Year)

No incidents recorded for Telmex in 2026.

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

Telstra 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/telstra.jpeg
Telstra
Incidents

Date Detected: 12/2025
Type:Cyber Attack
Attack Vector: Voice Phishing (Vishing), Phishing Kits, MFA Bypass (Push Notifications, OTPs)
Motivation: Data Theft, Financial Gain, Credential Harvesting
Blog: Blog

Date Detected: 10/2022
Type:Breach
Blog: Blog

Date Detected: 05/2021
Type:Data Leak
Attack Vector: Unspecified
Motivation: Ransom
Blog: Blog
https://images.rankiteo.com/companyimages/telmex.jpeg
Telmex
Incidents

No Incident

FAQ

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

Telstra company has historically faced a number of disclosed cyber incidents, whereas Telmex company has not reported any.

In the current year, Telmex company and Telstra company have not reported any cyber incidents.

Neither Telmex company nor Telstra company has reported experiencing a ransomware attack publicly.

Telstra company has disclosed at least one data breach, while the other Telmex company has not reported such incidents publicly.

Telstra company has reported targeted cyberattacks, while Telmex company has not reported such incidents publicly.

Telstra company has disclosed at least one vulnerability, while Telmex company has not reported such incidents publicly.

Neither Telstra nor Telmex holds any compliance certifications.

Neither company holds any compliance certifications.

Telstra company has more subsidiaries worldwide compared to Telmex company.

Telstra company employs more people globally than Telmex company, reflecting its scale as a Telecommunications.

Neither Telstra nor Telmex holds SOC 2 Type 1 certification.

Neither Telstra nor Telmex holds SOC 2 Type 2 certification.

Neither Telstra nor Telmex holds ISO 27001 certification.

Neither Telstra nor Telmex holds PCI DSS certification.

Neither Telstra nor Telmex holds HIPAA certification.

Neither Telstra nor Telmex holds GDPR certification.

Latest Global CVEs (Not Company-Specific)

Description

A vulnerability was found in Nothings stb up to 1.26. Impacted is the function stbtt_InitFont_internal in the library stb_truetype.h of the component TTF File Handler. Performing a manipulation results in out-of-bounds read. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Published
Date
2026-04-01
Updated
Date
2026-04-01
Risk Information
cvss2
Base: 5.0
Severity: LOW
AV:N/AC:L/Au:N/C:N/I:N/A:P
cvss3
Base: 4.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
cvss4
Base: 5.3
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/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
References
Description

V-SFT versions 6.2.10.0 and prior contain an out-of-bounds read in VS6ComFile!get_macro_mem_COM. Opening a crafted V7 file may lead to information disclosure from the affected product.

Published
Date
2026-04-01
Updated
Date
2026-04-01
Risk Information
cvss3
Base: 7.8
Severity: LOW
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
cvss4
Base: 8.4
Severity: LOW
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/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
References
Description

V-SFT versions 6.2.10.0 and prior contain a stack-based buffer overflow in VS6ComFile!CSaveData::_conv_AnimationItem. Opening a crafted V7 file may lead to arbitrary code execution on the affected product.

Published
Date
2026-04-01
Updated
Date
2026-04-01
Risk Information
cvss3
Base: 7.8
Severity: LOW
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
cvss4
Base: 8.4
Severity: LOW
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/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
References
Description

V-SFT versions 6.2.10.0 and prior contain an out-of-bounds read vulnerability in VS6MemInIF!set_temp_type_default. Opening a crafted V7 file may lead to information disclosure from the affected product.

Published
Date
2026-04-01
Updated
Date
2026-04-01
Risk Information
cvss3
Base: 7.8
Severity: LOW
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
cvss4
Base: 8.4
Severity: LOW
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/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
References
Description

V-SFT versions 6.2.10.0 and prior contain an out-of-bounds read vulnerability in VS6ComFile!load_link_inf. Opening a crafted V7 file may lead to information disclosure from the affected product.

Published
Date
2026-04-01
Updated
Date
2026-04-01
Risk Information
cvss3
Base: 7.8
Severity: LOW
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
cvss4
Base: 8.4
Severity: LOW
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/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
References