What is the official website of SK Telecom ?

The official website of SK Telecom is http://www.sktelecom.com/en.

What is SK Telecom's cybersecurity risk score?

SK Telecom has an AI-generated cybersecurity risk score of 100 out of 1000, indicating a Critical security posture according to Rankiteo's assessment.

How many security incidents has SK Telecom experienced?

According to Rankiteo, SK Telecom currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.

Has SK Telecom been affected by any supply chain cyber incidents ?

According to Rankiteo, SK Telecom has not been affected by any supply chain cyber incidents, and no incident IDs are currently listed for the organization.

Does SK Telecom have SOC 2 Type 1 certification ?

According to Rankiteo, SK Telecom is not certified under SOC 2 Type 1.

Does SK Telecom have SOC 2 Type 2 certification ?

According to Rankiteo, SK Telecom does not hold a SOC 2 Type 2 certification.

Does SK Telecom comply with GDPR ?

According to Rankiteo, SK Telecom is not listed as GDPR compliant.

Does SK Telecom have PCI DSS certification ?

According to Rankiteo, SK Telecom does not currently maintain PCI DSS compliance.

Does SK Telecom comply with HIPAA ?

According to Rankiteo, SK Telecom is not compliant with HIPAA regulations.

Does SK Telecom have ISO 27001 certification ?

According to Rankiteo,SK Telecom is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.

Which industry does SK Telecom operate in ?

SK Telecom operates primarily in the Telecommunications industry.

How many employees does SK Telecom have ?

SK Telecom employs approximately 7,448 people worldwide.

Does SK Telecom own any subsidiaries ?

SK Telecom presently has no subsidiaries across any sectors.

How many LinkedIn followers does SK Telecom have ?

SK Telecom's official LinkedIn profile has approximately 50,913 followers.

What is the NAICS classification code for SK Telecom ?

SK Telecom is classified under the NAICS code 517, which corresponds to Telecommunications.

Does SK Telecom have a Crunchbase profile ?

No, SK Telecom does not have a profile on Crunchbase.

Does SK Telecom have a LinkedIn profile ?

Yes, SK Telecom maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/sk-telecom.

How many cybersecurity incidents has SK Telecom experienced ?

As of October 9, 2026, Rankiteo reports that SK Telecom has experienced 12 cybersecurity incidents.

How many peer or competitor companies does SK Telecom have ?

SK Telecom has an estimated 10,378 peer or competitor companies worldwide.

What types of cybersecurity incidents has SK Telecom faced ?

Incident Types: The types of cybersecurity incidents that have occurred include Breach, Ransomware and Cyber Attack.

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SK Telecom

Boost Score +25 with badge (5 left)

100

/1000

Critical

125

/1000

Critical

SK Telecom Vendor Cyber Rating & Cyber Score

sktelecom.com

Add Your Compliance Badge

SK Telecom has been leading the growth of the mobile industry since 1984. Now, we are taking customer experience to new heights by extending beyond connectivity. By placing AI at the core of its business, we are rapidly transforming into an AI company. We are focusing on driving innovations in areas of telecommunications, media, AI, cloud and connected intelligence to deliver greater value for both individuals and enterprises. Our News: https://www.sktelecom.com/en/press/press.do

SK Telecom

SK Telecom CyberSecurity News & History

Past Incidents

Attack Types

Entity

Type

Severity

Impact

Seen

Blog Details

Supply Chain Source

Incident Details

View

SK Telecom

Breach

8/2026

SK-LG-178602726...

SK Telecom

Ransomware

100

7/2026

SK-NEX178519869...

SK Telecom

Breach

12/2025

SK-1765527019

SK Telecom

Breach

11/2025

SK-473234711202...

SK Telecom

Breach

100

10/2025

SK-546205410162...

SK Telecom

Cyber Attack

100

4/2025

SK-180271810012...

SK Telecom

Breach

6/2024

SK-GSR178817221...

SK Telecom

Breach

6/2022

SK-GEN176895598...

SK Telecom

Cyber Attack

100

6/2022

SK-633082925

SK Telecom

Breach

100

8/2021

SK-905083025

SK Telecom

Cyber Attack

100

6/2010

SK-422092125

SK Telecom

Breach

100

6/2000

SK-510225111042...

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A.I.

SK Telecom Company Scoring based on AI Models

Cyber Incidents Likelihood 3 - 6 - 9 months

Actual

Prediction

Incident Predictions locked

Access Monitoring Plan

A.I Risk Score Likelihood 3 - 6 - 9 months

Actual

Prediction A

Prediction B

Prediction C

Prediction D

A.I. Risk Score Predictions locked

Access Monitoring Plan

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Underwriter Stats for SK Telecom

Incidents vs Telecommunications Industry Avg (This Year)

SK Telecom has 9.89% more incidents than the average of same-industry companies with at least one recorded incident.

Incidents vs All-Companies Average (This Year)

SK Telecom has 98.02% more incidents than the average of all companies with at least one recorded incident.

Incident Types SK Telecom vs Telecommunications Industry Avg (This Year)

SK Telecom reported 2 incidents this year: 0 cyber attacks, 1 ransomware, 0 vulnerabilities, 1 data breaches, compared to industry peers with at least 1 incident.

Incident History - SK Telecom (X = Date, Y = Severity)

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SUBSIDIARY

SK Telecom Subsidiaries

Parent Company

SK Telecom

Telecommunications

Website: http://www.sktelecom.com/en

Company Size: 5,001-10,000 employees

No subsidiary data available for this company.

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SK Telecom Similar Companies

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telkom.co.id

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Grupo Televisa

televisa.com

Televisa es una gran corporación de telecomunicaciones que posee y opera una de las compañías de cable más relevantes y un sistema líder de televisión de paga vía satélite en México. El negocio de cable de Televisa ofrece servicios integrales que incluyen video, servicios de datos de alta velocidad y servicios de voz a clientes residenciales y comerciales, así ́como servicios administrados a empresas de telecomunicación locales e internacionales. Televisa posee una participación mayoritaria en Sky, un sistema líder de televisión de paga directa al hogar vía satélite y proveedor de banda ancha que opera en México, la República Dominicana y Centroamérica. Televisa es titular de una serie de concesiones del gobierno mexicano que le autorizan a transmitir programación a través de estaciones de televisión para las señales de TelevisaUnivision, Inc. (“TelevisaUnivision”), y los sistemas de cable y televisión satelital de Televisa. Además, Televisa es el mayor accionista de TelevisaUnivision, la compañía controladora de Univision Communications Inc., una empresa de medios líder en la producción, creación y distribución de contenido en español a través de varios canales de transmisión en México, Estados Unidos y a más de 70 países a través de operadores de cable, canales de televisión y servicios adicionales por internet (“OTT”, por sus siglas en inglés). Televisa también tiene intereses en la publicación y distribución de revistas, deportes profesionales y entretenimiento en vivo, y juegos.

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NEWS

SK Telecom CyberSecurity News

Latest updates, reports, and threat intel affecting the global network.

February 05, 2026 08:00 AM

SK Telecom turns to AI to restore profitability after FY2025 revenue decline

SK Telecom reported a consolidated revenue of KRW 17.099.2 trillion — down 4.7% year-on-year for fiscal year 2025.

Read Article

February 05, 2026 08:00 AM

SK Telecom: Sharp profit decline from cybersecurity incident; AI and data centers drive future growth

Revenue and profits declined sharply year-over-year due to a major cybersecurity incident, with significant penalties and restructuring...

Read Article

January 20, 2026 02:53 AM

Telecom earnings top 4tn won despite cybersecurity setbacks

South Korea's major mobile carriers are expected to recover combined annual operating profit above 4 trillion won ($2.72 billion) despite a...

Read Article

January 19, 2026 08:00 AM

SK Telecom to fight regulator over record data breach fine

SKT has said it will appeal the fine, with reports suggesting that the operator deems the fine to be unjustified and disproportionate.

Read Article

January 13, 2026 08:00 AM

SK Telecom claws back mobile subs as KT suffers

Last year, South Korea's KT Corp gained customers from SK Telecom following the latter's major cybersecurity breachThen KT suffered its own...

Read Article

December 22, 2025 08:00 AM

South Korea orders SK Telecom to pay 100,000 Won to each user after nationwide data breach

South Korea's state-run consumer watchdog has ordered SK Telecom Co., the country's largest mobile carrier, to compensate users with 100000...

Read Article

December 22, 2025 08:00 AM

South Korea's consumer agency to order SK Telecom to compensate 58 hacking victims

South Korea's consumer agency mandates SK Telecom to compensate victims of a significant data breach affecting over 20 million users.

Read Article

December 21, 2025 08:00 AM

Korea consumer agency rules SK Telecom should pay W2.3tr over data breach

The recommendation comes a month after SKT rejected a separate mediation proposal that could have totaled 7 trillion won in damages.

Read Article

December 18, 2025 08:00 AM

China-linked hackers exploit insecure setting in Cisco security products

China-linked hackers have been using misconfigured Cisco security products to deploy backdoors on target networks for at least the past...

Read Article

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CVE

Latest

Global CVEs (Not Company-Specific)

CVE-2026-97032

SUMMARY

HTTP/2 servers could end up crashing due to inadvertently modifying its HPACK encoder concurrently. This happens because the server modifies the HPACK encoder from two goroutines without synchronization: one uses the encoder to encode a HEADERS frame as part of a response sent to a client and the other modifies the encoder's table size when handling a SETTINGS frame containing SETTINGS_HEADER_TABLE_SIZE that a client sends. A malicious client can repeatedly send a request while changing the header table size to crash the server.

Published

Date2026-10-08

Updated

Date2026-10-08

RISK INFORMATION (Score: )

Impact Score

Exploitability

REFERENCES

CVE-2026-97031

SUMMARY

Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references. We now reject these as malformed and curb the memory amplification vector as a result.

Published

Date2026-10-08

Updated

Date2026-10-08

RISK INFORMATION (Score: )

Impact Score

Exploitability

REFERENCES

CVE-2026-97030

SUMMARY

A trusted template author may have previously written a valid template wherein the use of the 'yield' keyword would not be correctly escaped. We now ensure that valid keyword uses are escaped and non-keyword uses are not escaped.

Published

Date2026-10-08

Updated

Date2026-10-08

RISK INFORMATION (Score: )

Impact Score

Exploitability

REFERENCES

CVE-2026-96207

SUMMARY

Improper certificate validation in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.

Published

Date2026-10-08

Updated

Date2026-10-08

RISK INFORMATION (Score: 10)

cvss3

Base Score: 10.0

Complexity: LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Impact Score

5.8

Exploitability

3.9

REFERENCES

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96207

CVE-2026-94510

SUMMARY

Authorization bypass through user-controlled key in Microsoft Bookings allows an unauthorized attacker to elevate privileges over a network.

Published

Date2026-10-08

Updated

Date2026-10-08

RISK INFORMATION (Score: 9.9)

cvss3

Base Score: 9.9

Complexity: LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:L

Impact Score

5.3

Exploitability

3.9

REFERENCES

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-94510

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Network SecurityIdentify exposed access points, detect misconfigured SSL certificates, and uncover vulnerabilities across the network infrastructure.

SBOM (Software Bill of Materials)Gain visibility into the software components used within an organization to detect vulnerabilities, manage risk, and ensure supply chain security.

CMDB (Configuration Management Database)Monitor and manage all IT assets and their configurations to ensure accurate, real-time visibility across the company's technology environment.

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SK Telecom Vendor Cyber Rating & Cyber Score

SK Telecom A.I CyberSecurity Scoring

SK Telecom CyberSecurity News & History

SK Telecom Company Scoring based on AI Models

Cyber Incidents Likelihood 3 - 6 - 9 months

Incident Predictions locked

A.I Risk Score Likelihood 3 - 6 - 9 months

A.I. Risk Score Predictions locked

Underwriter Stats for SK Telecom

Incidents vs Telecommunications Industry Avg (This Year)

Incidents vs All-Companies Average (This Year)

Incident Types SK Telecom vs Telecommunications Industry Avg (This Year)

Incident History - SK Telecom (X = Date, Y = Severity)

SK Telecom Subsidiaries

Parent Company

SK Telecom

SK Telecom Similar Companies

Telkom Indonesia

Zain Group

Telecom Egypt

Grupo Televisa

Bell

Ooredoo Group

Huawei

BT Group

Lumen Technologies

SK Telecom CyberSecurity News

SK Telecom turns to AI to restore profitability after FY2025 revenue decline

SK Telecom: Sharp profit decline from cybersecurity incident; AI and data centers drive future growth

Telecom earnings top 4tn won despite cybersecurity setbacks

SK Telecom to fight regulator over record data breach fine

SK Telecom claws back mobile subs as KT suffers

South Korea orders SK Telecom to pay 100,000 Won to each user after nationwide data breach

South Korea's consumer agency to order SK Telecom to compensate 58 hacking victims

Korea consumer agency rules SK Telecom should pay W2.3tr over data breach

China-linked hackers exploit insecure setting in Cisco security products

Global CVEs (Not Company-Specific)

Access Data Using Our API

What Do We Measure ?

These are some of the factors we use to calculate the overall score:

Rankiteo

SK Telecom CyberSecurity News & History

SK Telecom Company Scoring based on AI Models

Cyber Incidents Likelihood 3 - 6 - 9 months

Incident Predictions locked

A.I Risk Score Likelihood 3 - 6 - 9 months

A.I. Risk Score Predictions locked

Underwriter Stats for SK Telecom

Incidents vs Telecommunications Industry Avg (This Year)

Incidents vs All-Companies Average (This Year)

Incident Types SK Telecom vs Telecommunications Industry Avg (This Year)

Incident History - SK Telecom (X = Date, Y = Severity)

SK Telecom Subsidiaries

Parent Company

SK Telecom

SK Telecom Similar Companies

Telkom Indonesia

Zain Group

Telecom Egypt

Grupo Televisa

Bell

Ooredoo Group

Huawei

BT Group

Lumen Technologies

SK Telecom CyberSecurity News

SK Telecom turns to AI to restore profitability after FY2025 revenue decline

SK Telecom: Sharp profit decline from cybersecurity incident; AI and data centers drive future growth

Telecom earnings top 4tn won despite cybersecurity setbacks

SK Telecom to fight regulator over record data breach fine

SK Telecom claws back mobile subs as KT suffers

South Korea orders SK Telecom to pay 100,000 Won to each user after nationwide data breach

South Korea's consumer agency to order SK Telecom to compensate 58 hacking victims

Korea consumer agency rules SK Telecom should pay W2.3tr over data breach

China-linked hackers exploit insecure setting in Cisco security products

Global CVEs (Not Company-Specific)

Access Data Using Our API

What Do We Measure ?