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Comparison Overview

T-MobileT-Mobile
VS
Vivo (Telefônica Brasil)Vivo (Telefônica Brasil)
T-Mobile

T-Mobile

12920 SE 38th St, Bellevue, WA, US, 98006

Last Update: 03/07/2026

View Profile
Between 0 and 549
https://t-mobile.com
454/1000Critical

As the supercharged Un-carrier, T-Mobile US, Inc. (NASDAQ: TMUS) is powered by an award-winning 5G network that connects more people, in more places, than ever before. With T-Mobile’s unique value proposition of best network, best value, and best experiences, the Un-car...

NAICS:517
NAICS Definition:Telecommunications
Employees:95,676
Subsidiaries:9
12-month incidents
3
Known data breaches
20
Attack type number
4
Vivo (Telefônica Brasil)

Vivo (Telefônica Brasil)

Avenida Eng. Luís Carlos Berrini, 1376, São Paulo, 04571 - 000, BR

Last Update: 01/04/2026

View Profile
Between 800 and 849
http://www.vivo.com.br
800/1000Good

Vivo (Telefônica Brasil) is part of the Telefónica Group and with more than 94 million customers, of which 75 million mobile and 19 million fixed, we are the largest telecommunications company in Brazil, with nationwide presence and a complete, convergent portfolio of p...

NAICS:517
NAICS Definition:Telecommunications
Employees:38,994
Subsidiaries:20
12-month incidents
0
Known data breaches
0
Attack type number
0

Compliance Ranges Comparison

Based On Specific Ai Models Category
T-Mobile

T-Mobile

-
ISO 27001Not verified
ISO 27001
-
SOC2 Type 1Not verified
SOC2 Type 1
-
SOC2 Type 2Not verified
SOC2 Type 2
-
GDPRNot verified
GDPR
-
PCI DSSNot verified
PCI DSS
-
HIPAANot verified
HIPAA
Vivo (Telefônica Brasil)

Vivo (Telefônica Brasil)

-
ISO 27001Not verified
ISO 27001
-
SOC2 Type 1Not verified
SOC2 Type 1
-
SOC2 Type 2Not verified
SOC2 Type 2
-
GDPRNot verified
GDPR
-
PCI DSSNot verified
PCI DSS
-
HIPAANot verified
HIPAA

Benchmark & Cyber Underwriting Signals

Incidents vs Telecommunications Industry Avg (This Year)

T-Mobile has 53.06% more incidents than the average of same-industry companies with at least one recorded incident.

Incidents

Incidents vs Telecommunications Industry Avg (This Year)

No incidents recorded for Vivo (Telefônica Brasil) in 2026.

Incidents

Incident History - T-Mobile (X = Date, Y = Severity)

T-Mobile cyber incidents detection timeline including parent company and subsidiaries.

R - Ransomware
C - Cyber Attack
D - Data Breach
V - Vulnerability

Incident History - Vivo (Telefônica Brasil) (X = Date, Y = Severity)

Vivo (Telefônica Brasil) cyber incidents detection timeline including parent company and subsidiaries.

R - Ransomware
C - Cyber Attack
D - Data Breach
V - Vulnerability

Notable Incidents

Last Cyber / HR Incidents / Global...
T-Mobile

T-Mobile

Incidents
🔒 Incident : Breach
T-M1775514990
🔒 Incident : Breach
T-M1774995874
🔒 Incident : Breach
T-M1775061177
Vivo (Telefônica Brasil)

Vivo (Telefônica Brasil)

Incidents
No explicit notable incidents reported.

FAQ

Between T-Mobile company and Vivo (Telefônica Brasil) company, which one has the best AI Cybersecurity Score ?
Between T-Mobile company and Vivo (Telefônica Brasil) company, which one has experienced more cyber incidents in the past ?
Between T-Mobile company and Vivo (Telefônica Brasil) company, which one has experienced more cyber incidents this year ?
Between T-Mobile company and Vivo (Telefônica Brasil) company, which one has experienced at least one ransomware attack ?
Between T-Mobile company and Vivo (Telefônica Brasil) company, which one has experienced at least one data breach ?
Between T-Mobile company and Vivo (Telefônica Brasil) company, which one has experienced at least one targeted cyberattack ?
Between T-Mobile company and Vivo (Telefônica Brasil) company, which one has experienced at least one vulnerability ?
Between T-Mobile company and Vivo (Telefônica Brasil) company, which one holds the most compliance certifications ?
Between T-Mobile company and Vivo (Telefônica Brasil) company, which one holds the fewest compliance certifications ?
Between T-Mobile company and Vivo (Telefônica Brasil) company, which one has the most subsidiaries ?
Between T-Mobile company and Vivo (Telefônica Brasil) company, which one has the largest number of employees ?
Between T-Mobile and Vivo (Telefônica Brasil), which company holds both SOC 2 Type 1 certifications ?
Between T-Mobile and Vivo (Telefônica Brasil), which company holds both SOC 2 Type 2 certifications ?
Which company is ISO 27001 certified - T-Mobile or Vivo (Telefônica Brasil) ?
Which company is PCI DSS compliant - T-Mobile or Vivo (Telefônica Brasil) ?
Between T-Mobile and Vivo (Telefônica Brasil), which company complies with HIPAA regulations for healthcare data ?
Between T-Mobile and Vivo (Telefônica Brasil), which company complies with GDPR requirements ?

Latest Global CVEs

CVE-2026-58523
SUMMARY

Improper access control in Microsoft Edge for Android allows an unauthorized attacker to bypass a security feature over a network.

PUBLISHED
Date2026-07-03
UPDATED
Date2026-07-03
RISK INFORMATION (Score: 6.5)
CVSS3
Base Score: 6.5
Complexity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
IMPACT SCORE
3.6
EXPLOITABILITY
2.8
CVE-2026-14617
SUMMARY

A security vulnerability has been detected in NousResearch hermes-agent up to 2026.4.30. Affected is the function GatewayStreamConsumer._filter_and_accumulate of the file gateway/stream_consumer.py of the component Streaming Reasoning Tag Filter. The manipulation leads to improper handling of case sensitivity. The attack may be initiated remotely. The attack's complexity is rated as high. The exploitability is told to be difficult. The exploit has been disclosed publicly and may be used. The project decided to not implement a dedicated fix: "[T]he analysis and the fix are both sound. It just lands below the bar for the maintenance cost of a duplicated scrub path."

PUBLISHED
Date2026-07-03
UPDATED
Date2026-07-03
RISK INFORMATION (Score: 3.1)
CVSS2
Base Score: 2.1
Complexity: HIGH
AV:N/AC:H/Au:S/C:P/I:N/A:N
CVSS3
Base Score: 3.1
Complexity: HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS4
Base Score: 1.3
Complexity: HIGH
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/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
IMPACT SCORE
1.4
EXPLOITABILITY
1.6
CVE-2026-58597
SUMMARY

Insufficient ui warning of dangerous operations in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.

PUBLISHED
Date2026-07-03
UPDATED
Date2026-07-03
RISK INFORMATION (Score: 4.3)
CVSS3
Base Score: 4.3
Complexity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
IMPACT SCORE
1.4
EXPLOITABILITY
2.8
CVE-2026-58524
SUMMARY

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.

PUBLISHED
Date2026-07-03
UPDATED
Date2026-07-03
RISK INFORMATION (Score: 5.4)
CVSS3
Base Score: 5.4
Complexity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
IMPACT SCORE
2.5
EXPLOITABILITY
2.8
CVE-2026-58522
SUMMARY

Relative path traversal in Microsoft Edge for Android allows an unauthorized attacker to disclose information locally.

PUBLISHED
Date2026-07-03
UPDATED
Date2026-07-03
RISK INFORMATION (Score: 6.8)
CVSS3
Base Score: 6.8
Complexity: LOW
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
IMPACT SCORE
4.2
EXPLOITABILITY
2.5