Comparison Overview

Vivo (Telefônica Brasil)

VS

TIM

Vivo (Telefônica Brasil)

Avenida Eng. Luís Carlos Berrini, 1376, São Paulo, 04571 - 000, BR
Last Update: 2026-04-01
Between 800 and 849

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 products, combining fixed, mobile and digital services. Our purpose is “Digitalize to Bring Closer”, helping to build a digital nation and transforming the life of our customers. More and more, we connect people and things with Fiber, 4G and 4.5G and cover more cities with the network quality that only Vivo has. Today, we cover around 90% of the population with 4G and are accelerating the launch of cities with 4.5G, using carrier aggregation technology. In the fixed operation, we ended 2019 with 21 million homes-passed (HPs) with fiber optic technology, of which 11 million HPs with FTTH (fiber to the home). In addition, all cities with FTTH technology also offer TV over fiber (IPTV), aiming to offer the best speed and experience to our consumers. At Vivo, we also do more than just telecommunications. Within the Group, we have the Telefônica Vivo Foundation, that is committed to making education a priority, developing projects that are based on human potential and use technology as an instrument in favor of inclusion and digital culture.

NAICS: 517
NAICS Definition: Telecommunications
Employees: 38,994
Subsidiaries: 20
12-month incidents
0
Known data breaches
2
Attack type number
2

TIM

Via Gaetano Negri, 1, Milano, 20123, IT
Last Update: 2026-03-30

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 that meet the needs of our stakeholders while also integrating climate strategy, circular economy and digital growth targets. TIM offers fixed and mobile telephony services and products for communication and entertainment for individuals and households, and supports small and medium-sized enterprises in their path towards digitalisation with a portfolio tailored to their needs. Cloud, IoT and Cybersecurity technologies are at the heart of TIM Enterprise's End-to-End solutions for companies and the public institutions that support the country's digital transformation by making use of the largest data centre network in Italy, the expertise of Group companies such as Noovle, Olivetti and Telsy, and partnerships with leading industrial groups. We develop 4G and 5G mobile network and fibre network infrastructure, that we make available to the entire market, both through a widespread national presence and intentionally through Sparkle. In Brazil, TIM Brasil is a major player in the South American communications market and a leader in 4G and 5G coverage. We also support projects of high social interest via TIM Foundation in Italy and Instituto TIM in Brazil. The values that both unite and distinguish us are passion and courage, which help us to seize the challenges of the market, inclusion, because it creates value for the entire society, and finally integrity, to deserve and maintain the trust of our stakeholders.

NAICS: 517
NAICS Definition: Telecommunications
Employees: 22,280
Subsidiaries: 6
12-month incidents
0
Known data breaches
0
Attack type number
0

Compliance Badges Comparison

Security & Compliance Standards Overview

https://images.rankiteo.com/companyimages/vivo-telefonicabr.jpeg
Vivo (Telefônica Brasil)
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/tim.jpeg
TIM
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
Vivo (Telefônica Brasil)
100%
Compliance Rate
0/4 Standards Verified
TIM
0%
Compliance Rate
0/4 Standards Verified

Benchmark & Cyber Underwriting Signals

Incidents vs Telecommunications Industry Average (This Year)

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

Incidents vs Telecommunications Industry Average (This Year)

No incidents recorded for TIM in 2026.

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

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

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

TIM cyber incidents detection timeline including parent company and subsidiaries

Notable Incidents

Last 3 Security & Risk Events by Company

https://images.rankiteo.com/companyimages/vivo-telefonicabr.jpeg
Vivo (Telefônica Brasil)
Incidents

Date Detected: 12/2025
Type:Breach
Blog: Blog

Date Detected: 6/2025
Type:Breach
Motivation: Extortion
Blog: Blog

Date Detected: 5/2025
Type:Ransomware
Attack Vector: Internal Jira development and ticketing server
Motivation: Ransom
Blog: Blog
https://images.rankiteo.com/companyimages/tim.jpeg
TIM
Incidents

No Incident

FAQ

Vivo (Telefônica Brasil) company demonstrates a stronger AI Cybersecurity Score compared to TIM company, reflecting its advanced cybersecurity posture governance and monitoring frameworks.

Vivo (Telefônica Brasil) company has historically faced a number of disclosed cyber incidents, whereas TIM company has not reported any.

In the current year, TIM company and Vivo (Telefônica Brasil) company have not reported any cyber incidents.

Vivo (Telefônica Brasil) company has confirmed experiencing a ransomware attack, while TIM company has not reported such incidents publicly.

Vivo (Telefônica Brasil) company has disclosed at least one data breach, while the other TIM company has not reported such incidents publicly.

Neither TIM company nor Vivo (Telefônica Brasil) company has reported experiencing targeted cyberattacks publicly.

Neither Vivo (Telefônica Brasil) company nor TIM company has reported experiencing or disclosing vulnerabilities publicly.

Neither Vivo (Telefônica Brasil) nor TIM holds any compliance certifications.

Neither company holds any compliance certifications.

Vivo (Telefônica Brasil) company has more subsidiaries worldwide compared to TIM company.

Vivo (Telefônica Brasil) company employs more people globally than TIM company, reflecting its scale as a Telecommunications.

Neither Vivo (Telefônica Brasil) nor TIM holds SOC 2 Type 1 certification.

Neither Vivo (Telefônica Brasil) nor TIM holds SOC 2 Type 2 certification.

Neither Vivo (Telefônica Brasil) nor TIM holds ISO 27001 certification.

Neither Vivo (Telefônica Brasil) nor TIM holds PCI DSS certification.

Neither Vivo (Telefônica Brasil) nor TIM holds HIPAA certification.

Neither Vivo (Telefônica Brasil) nor TIM 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.

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
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.

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
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.

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
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.

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
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.

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