Comparison Overview

Quebecor

VS

AT&T

Quebecor

612 rue Saint-Jacques Ouest, Montréal, H3C 4M8, CA
Last Update: 2025-12-11
Between 750 and 799

Chef de file canadien des télécommunications, du divertissement, des médias d’information et de la culture, Québecor est l’une des entreprises de communication intégrées les plus performantes de l’industrie. La Société réunit des marques fortes parmi les plus aimées des Québécois telles que Vidéotron, TVA, Le Journal de Montréal et Le Journal de Québec, en plus d’être active dans l’édition de magazines et de livres, l’affichage, les services cinématographiques et télévisuels grâce à MELS, la production de disque avec Musicor et la distribution de produits culturels. Québecor est également gestionnaire du Centre Vidéotron ainsi que producteur d’événements sportifs et culturels par l’intermédiaire de Gestev. Québecor emploie plus de 10 000 personnes au Canada. Situé à Montréal, son siège social met à profit l’expertise de plus de 150 talents, au service des différentes filiales de l’organisation. Entreprise familiale fondée en 1950, Québecor a à cœur de s’impliquer activement dans sa communauté. Chaque année, elle s’investit auprès de plus de 400 organismes dans tous les secteurs, en accordant un soutien particulier à la culture.

NAICS: 517
NAICS Definition: Telecommunications
Employees: 755
Subsidiaries: 0
12-month incidents
0
Known data breaches
0
Attack type number
0

AT&T

208 S. Akard Street, None, Dallas, TX, US, 75202
Last Update: 2025-12-11
Between 0 and 549

We understand that our customers want an easier, less complicated life. We’re using our network, labs, products, services, and people to create a world where everything works together seamlessly, and life is better as a result. How will we continue to drive for this excellence in innovation? With you. Our people, and their passion to succeed, are at the heart of what we do. Today, we’re poised to connect millions of people with their world, delivering the human benefits of technology in ways that defy the imaginable. What are you dreaming of doing with your career? Find stories about our talent, career advice, opportunities, company news, and innovations here on LinkedIn. To learn more about joining AT&T, visit: http://www.att.jobs We provide in some of our posts links to articles or posts from third-party websites unaffiliated with AT&T. In doing so, AT&T is not adopting, endorsing or otherwise approving the content of those articles or posts. AT&T is providing this content for your information only.

NAICS: 517
NAICS Definition: Telecommunications
Employees: 177,538
Subsidiaries: 7
12-month incidents
4
Known data breaches
19
Attack type number
3

Compliance Badges Comparison

Security & Compliance Standards Overview

https://images.rankiteo.com/companyimages/quebecor-media-inc.jpeg
Quebecor
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/att.jpeg
AT&T
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
Quebecor
100%
Compliance Rate
0/4 Standards Verified
AT&T
0%
Compliance Rate
0/4 Standards Verified

Benchmark & Cyber Underwriting Signals

Incidents vs Telecommunications Industry Average (This Year)

No incidents recorded for Quebecor in 2025.

Incidents vs Telecommunications Industry Average (This Year)

AT&T has 426.32% more incidents than the average of same-industry companies with at least one recorded incident.

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

Quebecor cyber incidents detection timeline including parent company and subsidiaries

Incident History — AT&T (X = Date, Y = Severity)

AT&T cyber incidents detection timeline including parent company and subsidiaries

Notable Incidents

Last 3 Security & Risk Events by Company

https://images.rankiteo.com/companyimages/quebecor-media-inc.jpeg
Quebecor
Incidents

No Incident

https://images.rankiteo.com/companyimages/att.jpeg
AT&T
Incidents

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

Date Detected: 11/2025
Type:Breach
Motivation: Financial Gain, Data Theft
Blog: Blog

Date Detected: 5/2025
Type:Breach
Blog: Blog

FAQ

Quebecor company demonstrates a stronger AI Cybersecurity Score compared to AT&T company, reflecting its advanced cybersecurity posture governance and monitoring frameworks.

AT&T company has historically faced a number of disclosed cyber incidents, whereas Quebecor company has not reported any.

In the current year, AT&T company has reported more cyber incidents than Quebecor company.

AT&T company has confirmed experiencing a ransomware attack, while Quebecor company has not reported such incidents publicly.

AT&T company has disclosed at least one data breach, while Quebecor company has not reported such incidents publicly.

AT&T company has reported targeted cyberattacks, while Quebecor company has not reported such incidents publicly.

Neither Quebecor company nor AT&T company has reported experiencing or disclosing vulnerabilities publicly.

Neither Quebecor nor AT&T holds any compliance certifications.

Neither company holds any compliance certifications.

AT&T company has more subsidiaries worldwide compared to Quebecor company.

AT&T company employs more people globally than Quebecor company, reflecting its scale as a Telecommunications.

Neither Quebecor nor AT&T holds SOC 2 Type 1 certification.

Neither Quebecor nor AT&T holds SOC 2 Type 2 certification.

Neither Quebecor nor AT&T holds ISO 27001 certification.

Neither Quebecor nor AT&T holds PCI DSS certification.

Neither Quebecor nor AT&T holds HIPAA certification.

Neither Quebecor nor AT&T holds GDPR certification.

Latest Global CVEs (Not Company-Specific)

Description

A weakness has been identified in itsourcecode Online Pet Shop Management System 1.0. This vulnerability affects unknown code of the file /pet1/addcnp.php. This manipulation of the argument cnpname causes sql injection. The attack can be initiated remotely. The exploit has been made available to the public and could be exploited.

Risk Information
cvss2
Base: 7.5
Severity: LOW
AV:N/AC:L/Au:N/C:P/I:P/A:P
cvss3
Base: 7.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
cvss4
Base: 6.9
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/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

A security flaw has been discovered in Tenda AX9 22.03.01.46. This affects the function image_check of the component httpd. The manipulation results in use of weak hash. It is possible to launch the attack remotely. A high complexity level is associated with this attack. It is indicated that the exploitability is difficult. The exploit has been released to the public and may be exploited.

Risk Information
cvss2
Base: 2.6
Severity: HIGH
AV:N/AC:H/Au:N/C:N/I:P/A:N
cvss3
Base: 3.7
Severity: HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
cvss4
Base: 6.3
Severity: HIGH
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/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
Description

A weakness has been identified in code-projects Student File Management System 1.0. This issue affects some unknown processing of the file /admin/update_student.php. This manipulation of the argument stud_id causes sql injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be exploited.

Risk Information
cvss2
Base: 7.5
Severity: LOW
AV:N/AC:L/Au:N/C:P/I:P/A:P
cvss3
Base: 7.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
cvss4
Base: 6.9
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/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

A security flaw has been discovered in code-projects Student File Management System 1.0. This vulnerability affects unknown code of the file /admin/save_user.php. The manipulation of the argument firstname results in sql injection. The attack can be executed remotely. The exploit has been released to the public and may be exploited.

Risk Information
cvss2
Base: 7.5
Severity: LOW
AV:N/AC:L/Au:N/C:P/I:P/A:P
cvss3
Base: 7.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
cvss4
Base: 6.9
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/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

A vulnerability was identified in code-projects Student File Management System 1.0. This affects an unknown part of the file /admin/update_user.php. The manipulation of the argument user_id leads to sql injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

Risk Information
cvss2
Base: 7.5
Severity: LOW
AV:N/AC:L/Au:N/C:P/I:P/A:P
cvss3
Base: 7.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
cvss4
Base: 6.9
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/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