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Yahoo International has a truly global footprint representing our brands across EMEA, APAC and LATAM with offices in the UK, Ireland, Spain, Israel, France, Germany, Italy, Norway, New Zealand, Australia, Singapore, India, Taiwan and Brazil. Our media, technology and business platforms connect hundreds of millions of people around the world to the things they love. With apps and sites like Yahoo Sports, Yahoo Finance, Yahoo Fantasy, Yahoo Mail and more and a powerful, open platform that connects brands and publishers to passionate fans, we’re all about putting an exclamation point on what you’re into.

Yahoo, International A.I CyberSecurity Scoring

Yahoo, International

Company Details

Linkedin ID:

yahoo-international

Employees number:

23

Number of followers:

9,068

NAICS:

513

Industry Type:

Technology, Information and Internet

Homepage:

yahooinc.com

IP Addresses:

0

Company ID:

YAH_3166803

Scan Status:

In-progress

AI scoreYahoo, International Risk Score (AI oriented)

Between 750 and 799

https://images.rankiteo.com/companyimages/yahoo-international.jpeg
Yahoo, International Technology, Information and Internet
Updated:
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globalscoreYahoo, International Global Score (TPRM)

XXXX

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Yahoo, International Technology, Information and Internet
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Yahoo, International Company CyberSecurity News & History

Past Incidents
1
Attack Types
1
EntityTypeSeverityImpactSeenBlog DetailsIncident DetailsView
Yahoo! Inc.Breach8548/2013
Rankiteo Explanation :
Attack with significant impact with customers data leaks

Description: In December 2016, the California Office of the Attorney General disclosed a massive data breach affecting **Yahoo! Inc.**, originating from an August 2013 cyberattack. A third party claimed possession of stolen user data from over **one billion accounts**, marking one of the largest breaches in history. The compromised information included **names, email addresses, phone numbers, and hashed passwords**, though payment card and bank account details were reportedly not exposed. The breach, attributed to state-sponsored actors, highlighted severe vulnerabilities in Yahoo’s security infrastructure, eroding user trust and leading to significant reputational damage. The incident also triggered regulatory scrutiny, financial penalties, and a **$350 million reduction in Yahoo’s acquisition price by Verizon** due to the breach’s scale and delayed disclosure. While no direct financial fraud was tied to the stolen data, the exposure of personal credentials posed long-term risks, including phishing, identity theft, and account takeovers across other platforms where users reused passwords.

Yahoo! Inc.
Breach
Severity: 85
Impact: 4
Seen: 8/2013
Blog:
Rankiteo Explanation
Attack with significant impact with customers data leaks

Description: In December 2016, the California Office of the Attorney General disclosed a massive data breach affecting **Yahoo! Inc.**, originating from an August 2013 cyberattack. A third party claimed possession of stolen user data from over **one billion accounts**, marking one of the largest breaches in history. The compromised information included **names, email addresses, phone numbers, and hashed passwords**, though payment card and bank account details were reportedly not exposed. The breach, attributed to state-sponsored actors, highlighted severe vulnerabilities in Yahoo’s security infrastructure, eroding user trust and leading to significant reputational damage. The incident also triggered regulatory scrutiny, financial penalties, and a **$350 million reduction in Yahoo’s acquisition price by Verizon** due to the breach’s scale and delayed disclosure. While no direct financial fraud was tied to the stolen data, the exposure of personal credentials posed long-term risks, including phishing, identity theft, and account takeovers across other platforms where users reused passwords.

Ailogo

Yahoo, International Company Scoring based on AI Models

Cyber Incidents Likelihood 3 - 6 - 9 months

🔒
Incident Predictions locked
Access Monitoring Plan

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

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A.I. Risk Score Predictions locked
Access Monitoring Plan
statics

Underwriter Stats for Yahoo, International

Incidents vs Technology, Information and Internet Industry Average (This Year)

No incidents recorded for Yahoo, International in 2025.

Incidents vs All-Companies Average (This Year)

No incidents recorded for Yahoo, International in 2025.

Incident Types Yahoo, International vs Technology, Information and Internet Industry Avg (This Year)

No incidents recorded for Yahoo, International in 2025.

Incident History — Yahoo, International (X = Date, Y = Severity)

Yahoo, International cyber incidents detection timeline including parent company and subsidiaries

Yahoo, International Company Subsidiaries

SubsidiaryImage

Yahoo International has a truly global footprint representing our brands across EMEA, APAC and LATAM with offices in the UK, Ireland, Spain, Israel, France, Germany, Italy, Norway, New Zealand, Australia, Singapore, India, Taiwan and Brazil. Our media, technology and business platforms connect hundreds of millions of people around the world to the things they love. With apps and sites like Yahoo Sports, Yahoo Finance, Yahoo Fantasy, Yahoo Mail and more and a powerful, open platform that connects brands and publishers to passionate fans, we’re all about putting an exclamation point on what you’re into.

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Yahoo, International CyberSecurity News

December 10, 2025 02:08 PM
Global Cyber Alliance Identifies Five Cybersecurity Forces That Defined 2025 - And Will Shape 2026

Global Cyber Alliance (GCA), an international nonprofit dedicated to improving Internet security, today released its 2025 cyber trends and...

December 10, 2025 02:07 PM
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Call for Global Entries: Globee® Awards for Cybersecurity to Recognize Original Research and Innovation Papers

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faq

Frequently Asked Questions

Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.

Yahoo, International CyberSecurity History Information

Official Website of Yahoo, International

The official website of Yahoo, International is https://www.yahooinc.com/careers/.

Yahoo, International’s AI-Generated Cybersecurity Score

According to Rankiteo, Yahoo, International’s AI-generated cybersecurity score is 755, reflecting their Fair security posture.

How many security badges does Yahoo, International’ have ?

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

Does Yahoo, International have SOC 2 Type 1 certification ?

According to Rankiteo, Yahoo, International is not certified under SOC 2 Type 1.

Does Yahoo, International have SOC 2 Type 2 certification ?

According to Rankiteo, Yahoo, International does not hold a SOC 2 Type 2 certification.

Does Yahoo, International comply with GDPR ?

According to Rankiteo, Yahoo, International is not listed as GDPR compliant.

Does Yahoo, International have PCI DSS certification ?

According to Rankiteo, Yahoo, International does not currently maintain PCI DSS compliance.

Does Yahoo, International comply with HIPAA ?

According to Rankiteo, Yahoo, International is not compliant with HIPAA regulations.

Does Yahoo, International have ISO 27001 certification ?

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

Industry Classification of Yahoo, International

Yahoo, International operates primarily in the Technology, Information and Internet industry.

Number of Employees at Yahoo, International

Yahoo, International employs approximately 23 people worldwide.

Subsidiaries Owned by Yahoo, International

Yahoo, International presently has no subsidiaries across any sectors.

Yahoo, International’s LinkedIn Followers

Yahoo, International’s official LinkedIn profile has approximately 9,068 followers.

NAICS Classification of Yahoo, International

Yahoo, International is classified under the NAICS code 513, which corresponds to Others.

Yahoo, International’s Presence on Crunchbase

No, Yahoo, International does not have a profile on Crunchbase.

Yahoo, International’s Presence on LinkedIn

Yes, Yahoo, International maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/yahoo-international.

Cybersecurity Incidents Involving Yahoo, International

As of December 18, 2025, Rankiteo reports that Yahoo, International has experienced 1 cybersecurity incidents.

Number of Peer and Competitor Companies

Yahoo, International has an estimated 13,247 peer or competitor companies worldwide.

What types of cybersecurity incidents have occurred at Yahoo, International ?

Incident Types: The types of cybersecurity incidents that have occurred include Breach.

How does Yahoo, International detect and respond to cybersecurity incidents ?

Detection and Response: The company detects and responds to cybersecurity incidents through an law enforcement notified with yes (california office of the attorney general)..

Incident Details

Can you provide details on each incident ?

Incident : Data Breach

Title: Yahoo Data Breach (2013, Disclosed 2016)

Description: On December 14, 2016, the California Office of the Attorney General reported data security issues concerning Yahoo! Inc. A third party claimed to have Yahoo user data that was stolen in August 2013, affecting over one billion user accounts. The compromised information may have included names, email addresses, phone numbers, and hashed passwords, but not payment card or bank account data.

Date Detected: 2016-12-14

Date Publicly Disclosed: 2016-12-14

Type: Data Breach

What are the most common types of attacks the company has faced ?

Common Attack Types: The most common types of attacks the company has faced is Breach.

Impact of the Incidents

What was the impact of each incident ?

Incident : Data Breach YAH948091725

Data Compromised: Names, Email addresses, Phone numbers, Hashed passwords

Brand Reputation Impact: Severe (affected over 1 billion accounts)

Identity Theft Risk: High (PII exposed)

Payment Information Risk: None (payment card/bank data not compromised)

What types of data are most commonly compromised in incidents ?

Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Personally Identifiable Information (Pii), Authentication Data and .

Which entities were affected by each incident ?

Incident : Data Breach YAH948091725

Entity Name: Yahoo! Inc.

Entity Type: Corporation

Industry: Technology (Internet Services)

Location: Sunnyvale, California, USA

Size: Large (global operations)

Customers Affected: 1,000,000,000+

Response to the Incidents

What measures were taken in response to each incident ?

Incident : Data Breach YAH948091725

Law Enforcement Notified: Yes (California Office of the Attorney General)

Data Breach Information

What type of data was compromised in each breach ?

Incident : Data Breach YAH948091725

Type of Data Compromised: Personally identifiable information (pii), Authentication data

Number of Records Exposed: 1,000,000,000+

Sensitivity of Data: High (includes hashed passwords)

Data Exfiltration: Yes

Data Encryption: Partially (hashed passwords)

Personally Identifiable Information: namesemail addressesphone numbers

Regulatory Compliance

Were there any regulatory violations and fines imposed for each incident ?

Incident : Data Breach YAH948091725

Regulatory Notifications: California Office of the Attorney General

References

Where can I find more information about each incident ?

Incident : Data Breach YAH948091725

Source: California Office of the Attorney General

Date Accessed: 2016-12-14

Where can stakeholders find additional resources on cybersecurity best practices ?

Additional Resources: Stakeholders can find additional resources on cybersecurity best practices at and Source: California Office of the Attorney GeneralDate Accessed: 2016-12-14.

Additional Questions

Incident Details

What was the most recent incident detected ?

Most Recent Incident Detected: The most recent incident detected was on 2016-12-14.

What was the most recent incident publicly disclosed ?

Most Recent Incident Publicly Disclosed: The most recent incident publicly disclosed was on 2016-12-14.

Impact of the Incidents

What was the most significant data compromised in an incident ?

Most Significant Data Compromised: The most significant data compromised in an incident were names, email addresses, phone numbers, hashed passwords and .

Data Breach Information

What was the most sensitive data compromised in a breach ?

Most Sensitive Data Compromised: The most sensitive data compromised in a breach were phone numbers, names, email addresses and hashed passwords.

What was the number of records exposed in the most significant breach ?

Number of Records Exposed in Most Significant Breach: The number of records exposed in the most significant breach was 1.0B.

References

What is the most recent source of information about an incident ?

Most Recent Source: The most recent source of information about an incident is California Office of the Attorney General.

cve

Latest Global CVEs (Not Company-Specific)

Description

Zerobyte is a backup automation tool Zerobyte versions prior to 0.18.5 and 0.19.0 contain an authentication bypass vulnerability where authentication middleware is not properly applied to API endpoints. This results in certain API endpoints being accessible without valid session credentials. This is dangerous for those who have exposed Zerobyte to be used outside of their internal network. A fix has been applied in both version 0.19.0 and 0.18.5. If immediate upgrade is not possible, restrict network access to the Zerobyte instance to trusted networks only using firewall rules or network segmentation. This is only a temporary mitigation; upgrading is strongly recommended.

Risk Information
cvss3
Base: 9.1
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Description

Open Source Point of Sale (opensourcepos) is a web based point of sale application written in PHP using CodeIgniter framework. Starting in version 3.4.0 and prior to version 3.4.2, a Cross-Site Request Forgery (CSRF) vulnerability exists in the application's filter configuration. The CSRF protection mechanism was **explicitly disabled**, allowing the application to process state-changing requests (POST) without verifying a valid CSRF token. An unauthenticated remote attacker can exploit this by hosting a malicious web page. If a logged-in administrator visits this page, their browser is forced to send unauthorized requests to the application. A successful exploit allows the attacker to silently create a new Administrator account with full privileges, leading to a complete takeover of the system and loss of confidentiality, integrity, and availability. The vulnerability has been patched in version 3.4.2. The fix re-enables the CSRF filter in `app/Config/Filters.php` and resolves associated AJAX race conditions by adjusting token regeneration settings. As a workaround, administrators can manually re-enable the CSRF filter in `app/Config/Filters.php` by uncommenting the protection line. However, this is not recommended without applying the full patch, as it may cause functionality breakage in the Sales module due to token synchronization issues.

Risk Information
cvss3
Base: 8.8
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Description

Zed, a code editor, has an aribtrary code execution vulnerability in versions prior to 0.218.2-pre. The Zed IDE loads Model Context Protocol (MCP) configurations from the `settings.json` file located within a project’s `.zed` subdirectory. A malicious MCP configuration can contain arbitrary shell commands that run on the host system with the privileges of the user running the IDE. This can be triggered automatically without any user interaction besides opening the project in the IDE. Version 0.218.2-pre fixes the issue by implementing worktree trust mechanism. As a workaround, users should carefully review the contents of project settings files (`./zed/settings.json`) before opening new projects in Zed.

Risk Information
cvss3
Base: 7.7
Severity: HIGH
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Description

Zed, a code editor, has an aribtrary code execution vulnerability in versions prior to 0.218.2-pre. The Zed IDE loads Language Server Protocol (LSP) configurations from the `settings.json` file located within a project’s `.zed` subdirectory. A malicious LSP configuration can contain arbitrary shell commands that run on the host system with the privileges of the user running the IDE. This can be triggered when a user opens project file for which there is an LSP entry. A concerted effort by an attacker to seed a project settings file (`./zed/settings.json`) with malicious language server configurations could result in arbitrary code execution with the user's privileges if the user opens the project in Zed without reviewing the contents. Version 0.218.2-pre fixes the issue by implementing worktree trust mechanism. As a workaround, users should carefully review the contents of project settings files (`./zed/settings.json`) before opening new projects in Zed.

Risk Information
cvss3
Base: 7.7
Severity: HIGH
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Description

Storybook is a frontend workshop for building user interface components and pages in isolation. A vulnerability present starting in versions 7.0.0 and prior to versions 7.6.21, 8.6.15, 9.1.17, and 10.1.10 relates to Storybook’s handling of environment variables defined in a `.env` file, which could, in specific circumstances, lead to those variables being unexpectedly bundled into the artifacts created by the `storybook build` command. When a built Storybook is published to the web, the bundle’s source is viewable, thus potentially exposing those variables to anyone with access. For a project to potentially be vulnerable to this issue, it must build the Storybook (i.e. run `storybook build` directly or indirectly) in a directory that contains a `.env` file (including variants like `.env.local`) and publish the built Storybook to the web. Storybooks built without a `.env` file at build time are not affected, including common CI-based builds where secrets are provided via platform environment variables rather than `.env` files. Storybook runtime environments (i.e. `storybook dev`) are not affected. Deployed applications that share a repo with your Storybook are not affected. Users should upgrade their Storybook—on both their local machines and CI environment—to version .6.21, 8.6.15, 9.1.17, or 10.1.10 as soon as possible. Maintainers additionally recommend that users audit for any sensitive secrets provided via `.env` files and rotate those keys. Some projects may have been relying on the undocumented behavior at the heart of this issue and will need to change how they reference environment variables after this update. If a project can no longer read necessary environmental variable values, either prefix the variables with `STORYBOOK_` or use the `env` property in Storybook’s configuration to manually specify values. In either case, do not include sensitive secrets as they will be included in the built bundle.

Risk Information
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

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Digital Assets

Every week, Rankiteo analyzes billions of signals to give organizations a sharper, faster view of emerging risks. With deeper, more actionable intelligence at their fingertips, security teams can outpace threat actors, respond instantly to Zero-Day attacks, and dramatically shrink their risk exposure window.

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

Network Security

Identify 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.

Threat Intelligence

Leverage real-time insights on active threats, malware campaigns, and emerging vulnerabilities to proactively defend against evolving cyberattacks.

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