Comparison Overview

Cox Communications

VS

Vivo (Telefônica Brasil)

Cox Communications

6205 Peachtree Dunwoody Road, Atlanta, 30328, US
Last Update: 2026-04-01
View Profile
Between 750 and 799
http://www.cox.com

Cox Communications is committed to creating more moments of real human connection. We bring people closer to family and friends through technology that’s inspired by a culture that puts people first, and we’re always working to improve life in the communities we serve. Our world-class broadband applications and services are helping create smart homes and smart cities that will bring more comfort, convenience, security, entertainment and connectivity to the lives of the people we serve. Our company is full of dreamers and doers; people who make plans and who make things happen. And, of course, people who have fun doing it. In short, people like you. Join the Cox team and make your mark!

NAICS: 517
NAICS Definition: Telecommunications
Employees: 16,319
Subsidiaries: 23
12-month incidents
0
Known data breaches
3
Attack type number
4
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/cox-communications.jpeg
Cox Communications
—
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
Cox Communications
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 Cox Communications in 2026.

Incidents vs Telecommunications Industry Average (This Year)

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

Incident History — Cox Communications (X = Date, Y = Severity)

Cox Communications 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/cox-communications.jpeg
Cox Communications
Incidents

Date Detected: 8/2025
Type:Breach
Attack Vector: Zero-Day Exploit (CVE-2025-61882), Unauthenticated Access, Multi-Stage Java Implants, Data Exfiltration
Motivation: Financial Gain, Data Theft, Extortion
Blog: Blog

Date Detected: 9/2024
Type:Ransomware
Attack Vector: Internal (Insider)
Blog: Blog

Date Detected: 1/2023
Type:Data Leak
Attack Vector: Automated Collection Methods
Blog: Blog
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 Cox Communications company, reflecting its advanced cybersecurity posture governance and monitoring frameworks.

Cox Communications company has faced a higher number of disclosed cyber incidents historically compared to Vivo (Telefônica Brasil) company.

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

Both Vivo (Telefônica Brasil) company and Cox Communications company have confirmed experiencing at least one ransomware attack.

Both Vivo (Telefônica Brasil) company and Cox Communications company have disclosed experiencing at least one data breach.

Cox Communications company has reported targeted cyberattacks, while Vivo (Telefônica Brasil) company has not reported such incidents publicly.

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

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

Neither company holds any compliance certifications.

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

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

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

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

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

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

Neither Cox Communications nor Vivo (Telefônica Brasil) holds HIPAA certification.

Neither Cox Communications 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