Comparison Overview

Telkom Business

VS

Vivo (Telefônica Brasil)

Telkom Business

61 Oak Avenue, Centurion 0169, Centurion, 0169, ZA
Last Update: 2026-03-27
View Profile
Between 750 and 799
http://www.telkombusiness.co.za

Telkom Business is the business unit dedicated to serving businesses of every type, industry and size in and outside South Africa. The businesses that we serve range from small and medium enterprises (SMEs) to large corporations, government organisations and global enterprises. A sub-brand of the Telkom Group, Telkom Business operates from a head office located in Centurion, Gauteng, employing over 800 sales, marketing, product and support teams around the country. Positioned as the industry leader in telecommunications and ICT in South Africa, Telkom Business offers capability solutions across the technology spectrum. At Telkom Business, the world of Convergence is where IT and telecommunications meet in a seamless, synergistic relationship that can benefit any size of business.

NAICS: 517
NAICS Definition: Telecommunications
Employees: 401
Subsidiaries: 0
12-month incidents
0
Known data breaches
0
Attack type number
0
View Profile

Vivo (Telefônica Brasil)

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

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

Compliance Badges Comparison

Security & Compliance Standards Overview

https://images.rankiteo.com/companyimages/telkom-business.jpeg
Telkom Business
—
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/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
Compliance Summary
Telkom Business
100%
Compliance Rate
0/4 Standards Verified
Vivo (Telefônica Brasil)
0%
Compliance Rate
0/4 Standards Verified

Benchmark & Cyber Underwriting Signals

Incidents vs Telecommunications Industry Average (This Year)

No incidents recorded for Telkom Business in 2026.

Incidents vs Telecommunications Industry Average (This Year)

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

Incident History — Telkom Business (X = Date, Y = Severity)

Telkom Business cyber incidents detection timeline including parent company and subsidiaries

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

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

Notable Incidents

Last 3 Security & Risk Events by Company

https://images.rankiteo.com/companyimages/telkom-business.jpeg
Telkom Business
Incidents

No Incident

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

FAQ

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

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

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

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

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

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

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

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

Neither company holds any compliance certifications.

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

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

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

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

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

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

Neither Telkom Business nor Vivo (Telefônica Brasil) holds HIPAA certification.

Neither Telkom Business nor Vivo (Telefônica Brasil) 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