Comparison Overview

AT&T

VS

A1 Telekom Austria Group

AT&T

208 S. Akard Street, Dallas, 75202, US
Last Update: 2026-04-02
View Profile
Between 0 and 549
http://www.att.com

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: 178,894
Subsidiaries: 6
12-month incidents
3
Known data breaches
22
Attack type number
3
View Profile

A1 Telekom Austria Group

Lassallestrasse 9, Vienna, Vienna, AT, 1020
Last Update: 2026-04-02
Between 750 and 799
https://www.a1.group/

WE ARE EMPOWERING DIGITAL LIFE We don't know what the world will look like in 2050, but we know that A1 Telekom Austria Group is geared up for current and future demands. We are a leading provider of digital services and communications solutions in Central and Eastern Europe, offering a state-of-the art network infrastructure as well as empowering digitalization. 19.000 of our employees and modern broadband infrastructure make digital business and lifestyle possible as well as enable more than 24 mio users to connect everywhere anytime. Our purpose is to Empower Digital Life in areas of communications, payment, entertainment services and integrated business solutions. We do this together with our operating companies in 7 European countries: Austria, Bulgaria, Croatia, Slovenia, Belarus, Republic of Serbia and Republic of North Macedonia. Headquartered in Vienna and listed on the Vienna Stock Exchange, the A1 Telekom Austria Group is an European unit of América Móvil, one of the world´s largest wireless services providers. You can also follow us here: https://twitter.com/TA_Group Find out more about us as an employer on https://jobs.a1.com/

NAICS: 517
NAICS Definition: Telecommunications
Employees: 12,126
Subsidiaries: 10
12-month incidents
0
Known data breaches
2
Attack type number
1

Compliance Badges Comparison

Security & Compliance Standards Overview

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
https://images.rankiteo.com/companyimages/a1-telekom-austria-group.jpeg
A1 Telekom Austria Group
—
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
AT&T
100%
Compliance Rate
0/4 Standards Verified
A1 Telekom Austria Group
0%
Compliance Rate
0/4 Standards Verified

Benchmark & Cyber Underwriting Signals

Incidents vs Telecommunications Industry Average (This Year)

AT&T has 66.67% more incidents than the average of same-industry companies with at least one recorded incident.

Incidents vs Telecommunications Industry Average (This Year)

No incidents recorded for A1 Telekom Austria Group in 2026.

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

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

Incident History — A1 Telekom Austria Group (X = Date, Y = Severity)

A1 Telekom Austria Group cyber incidents detection timeline including parent company and subsidiaries

Notable Incidents

Last 3 Security & Risk Events by Company

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

Date Detected: 3/2026
Type:Breach
Blog: Blog

Date Detected: 2/2026
Type:Cyber Attack
Attack Vector: Supply-chain infiltration via ISP compromise
Motivation: Espionage
Blog: Blog

Date Detected: 2/2026
Type:Breach
Motivation: Financial Gain (Identity Theft/Fraud)
Blog: Blog
https://images.rankiteo.com/companyimages/a1-telekom-austria-group.jpeg
A1 Telekom Austria Group
Incidents

Date Detected: 02/2022
Type:Breach
Blog: Blog

Date Detected: 11/2019
Type:Breach
Blog: Blog

FAQ

A1 Telekom Austria Group 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 faced a higher number of disclosed cyber incidents historically compared to A1 Telekom Austria Group company.

In the current year, AT&T company has reported more cyber incidents than A1 Telekom Austria Group company.

AT&T company has confirmed experiencing a ransomware attack, while A1 Telekom Austria Group company has not reported such incidents publicly.

Both A1 Telekom Austria Group company and AT&T company have disclosed experiencing at least one data breach.

AT&T company has reported targeted cyberattacks, while A1 Telekom Austria Group company has not reported such incidents publicly.

Neither AT&T company nor A1 Telekom Austria Group company has reported experiencing or disclosing vulnerabilities publicly.

Neither AT&T nor A1 Telekom Austria Group holds any compliance certifications.

Neither company holds any compliance certifications.

A1 Telekom Austria Group company has more subsidiaries worldwide compared to AT&T company.

AT&T company employs more people globally than A1 Telekom Austria Group company, reflecting its scale as a Telecommunications.

Neither AT&T nor A1 Telekom Austria Group holds SOC 2 Type 1 certification.

Neither AT&T nor A1 Telekom Austria Group holds SOC 2 Type 2 certification.

Neither AT&T nor A1 Telekom Austria Group holds ISO 27001 certification.

Neither AT&T nor A1 Telekom Austria Group holds PCI DSS certification.

Neither AT&T nor A1 Telekom Austria Group holds HIPAA certification.

Neither AT&T nor A1 Telekom Austria Group 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