Thomson Reuters
Company Details
Linkedin ID:
thomson-reuters
Website:
Employees number:
35,141
Number of followers:
1,799,859
NAICS:
5112
Industry Type:
Homepage:
tr.com
IP Addresses:
1415
Company ID:
THO_3467413
Scan Status:
Completed
Thomson Reuters Company CyberSecurity Posture
tr.com
Thomson Reuters is the world’s leading provider of news and information-based tools to professionals. Our worldwide network of journalists and specialist editors keep customers up to speed on global developments, with a particular focus on legal, regulatory and tax changes. Our customers operate in complex arenas that move society forward — tax, law, compliance, government, media. In a disruptive digital age, we help professionals reinvent themselves. Thomson Reuters shares are listed on the Toronto and New York Stock Exchanges (symbol: TRI).
Thomson Reuters A.I CyberSecurity Scoring
Thomson Reuters Risk Score (AI oriented)Between 750 and 799
Thomson Reuters
Updated:
- Powered by our proprietary A.I cyber incident model
- Insurance preferes TPRM score to calculate premium
Thomson Reuters Global Score (TPRM)XXXX
Thomson Reuters
- Instant access to detailed risk factors
- Benchmark vs. industry & size peers
- Vulnerabilities
- Findings
Thomson Reuters Company CyberSecurity News & History
Past Incidents
2
Attack Types
2
Thomson Reuters
Breach
Rankiteo Explanation
Attack with significant impact with customers data leaks
Description: Thomson Reuters provides customers with products such as the business-to-business media tool Reuters Connect, legal research service and database Westlaw, the tax automation system ONESOURCE, online research suite of editorial and source materials Checkpoint, and other tools. The size of the open database the team discovered corresponds with the company using ElasticSearch, a data storage favored by enterprises dealing with extensive, constantly updated volumes of data. Media giant with $6.35 billion in revenue left at least three of its databases open At least 3TB of sensitive data exposed including Thomson Reuters plaintext passwords to third-party servers The data company collects is a treasure trove for threat actors, likely worth millions of dollars on underground criminal forums The company has immediately fixed the issue, and started notifying their customers Thomson Reuters downplayed the issue, saying it affects only a “small subset of Thomson Reuters Global Trade customers” The dataset was open for several days – malicious bots are capable of discovering instances within mere hours Threat actors could use the leak for attacks, from social engineering attacks to ransomware
Thomson Reuters
Cyber Attack
Rankiteo Explanation
Attack with significant impact with internal employee data leaks
Description: In retaliation for a cyber attack by Russia against the Ukrainian telecom giant Kyivstar, hackers associated with Ukraine's primary intelligence agency have infiltrated the computer systems of a Moscow-based internet provider, Reuters reports. The hackers, allegedly linked to Ukraine's spy agency, erased 20 terabytes of data from M9 Telecom, a relatively small Russian internet and TV provider, resulting in some Moscow residents experiencing internet service disruptions. Despite the hacking group's assertion that the company's website had been destroyed, the extent of the successful breach could not be independently verified by Reuters.
Thomson Reuters Company Scoring based on AI Models
Cyber Incidents Likelihood 3 - 6 - 9 months
A.I Risk Score Likelihood 3 - 6 - 9 months
Underwriter Stats for Thomson Reuters
Incidents vs Software Development Industry Average (This Year)
No incidents recorded for Thomson Reuters in 2025.
Incidents vs All-Companies Average (This Year)
No incidents recorded for Thomson Reuters in 2025.
Incident Types Thomson Reuters vs Software Development Industry Avg (This Year)
No incidents recorded for Thomson Reuters in 2025.
Incident History — Thomson Reuters (X = Date, Y = Severity)
Thomson Reuters cyber incidents detection timeline including parent company and subsidiaries
Thomson Reuters Company Subsidiaries
Thomson Reuters is the world’s leading provider of news and information-based tools to professionals. Our worldwide network of journalists and specialist editors keep customers up to speed on global developments, with a particular focus on legal, regulatory and tax changes. Our customers operate in complex arenas that move society forward — tax, law, compliance, government, media. In a disruptive digital age, we help professionals reinvent themselves. Thomson Reuters shares are listed on the Toronto and New York Stock Exchanges (symbol: TRI).
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At Thomson Reuters, our mission has always been to empower professionals and institutions to confidently address the complexities of today...
Frequently Asked Questions
Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.
Thomson Reuters CyberSecurity History Information
Official Website of Thomson Reuters
The official website of Thomson Reuters is http://tr.com.
Thomson Reuters’s AI-Generated Cybersecurity Score
According to Rankiteo, Thomson Reuters’s AI-generated cybersecurity score is 790, reflecting their Fair security posture.
How many security badges does Thomson Reuters’ have ?
According to Rankiteo, Thomson Reuters currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.
Does Thomson Reuters have SOC 2 Type 1 certification ?
According to Rankiteo, Thomson Reuters is not certified under SOC 2 Type 1.
Does Thomson Reuters have SOC 2 Type 2 certification ?
According to Rankiteo, Thomson Reuters does not hold a SOC 2 Type 2 certification.
Does Thomson Reuters comply with GDPR ?
According to Rankiteo, Thomson Reuters is not listed as GDPR compliant.
Does Thomson Reuters have PCI DSS certification ?
According to Rankiteo, Thomson Reuters does not currently maintain PCI DSS compliance.
Does Thomson Reuters comply with HIPAA ?
According to Rankiteo, Thomson Reuters is not compliant with HIPAA regulations.
Does Thomson Reuters have ISO 27001 certification ?
According to Rankiteo,Thomson Reuters is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.
Industry Classification of Thomson Reuters
Thomson Reuters operates primarily in the Software Development industry.
Number of Employees at Thomson Reuters
Thomson Reuters employs approximately 35,141 people worldwide.
Subsidiaries Owned by Thomson Reuters
Thomson Reuters presently has no subsidiaries across any sectors.
Thomson Reuters’s LinkedIn Followers
Thomson Reuters’s official LinkedIn profile has approximately 1,799,859 followers.
NAICS Classification of Thomson Reuters
Thomson Reuters is classified under the NAICS code 5112, which corresponds to Software Publishers.
Thomson Reuters’s Presence on Crunchbase
No, Thomson Reuters does not have a profile on Crunchbase.
Thomson Reuters’s Presence on LinkedIn
Yes, Thomson Reuters maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/thomson-reuters.
Cybersecurity Incidents Involving Thomson Reuters
As of December 11, 2025, Rankiteo reports that Thomson Reuters has experienced 2 cybersecurity incidents.
Number of Peer and Competitor Companies
Thomson Reuters has an estimated 27,532 peer or competitor companies worldwide.
What types of cybersecurity incidents have occurred at Thomson Reuters ?
Incident Types: The types of cybersecurity incidents that have occurred include Cyber Attack and Breach.
How does Thomson Reuters detect and respond to cybersecurity incidents ?
Detection and Response: The company detects and responds to cybersecurity incidents through an containment measures with the company has immediately fixed the issue, and remediation measures with started notifying their customers, and communication strategy with downplayed the issue..
Incident Details
Can you provide details on each incident ?
Title: Thomson Reuters Data Exposure
Description: Thomson Reuters left at least three of its databases open, exposing at least 3TB of sensitive data including plaintext passwords to third-party servers.
Type: Data Exposure
Attack Vector: Unsecured Database
Vulnerability Exploited: Unsecured ElasticSearch Database
Title: Cyber Attack on Moscow-based M9 Telecom by Ukrainian Hackers
Description: Hackers associated with Ukraine's primary intelligence agency infiltrated the computer systems of M9 Telecom, a Moscow-based internet provider, in retaliation for a cyber attack by Russia against the Ukrainian telecom giant Kyivstar. The hackers erased 20 terabytes of data, resulting in internet service disruptions for some Moscow residents.
Type: Data Breach
Attack Vector: Unspecified Infiltration
Threat Actor: Hackers associated with Ukraine's primary intelligence agency
Motivation: Retaliation for a cyber attack by Russia against Kyivstar
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 Exposure THO1335281022
Data Compromised: Sensitive data, Plaintext passwords
Systems Affected: ElasticSearch databases
Incident : Data Breach THO185521124
Data Compromised: 20 terabytes of data erased
Systems Affected: Internet and TV services
Downtime: Internet service disruptions for some Moscow residents
What types of data are most commonly compromised in incidents ?
Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Sensitive Data, Plaintext Passwords and .
Which entities were affected by each incident ?
Incident : Data Exposure THO1335281022
Entity Name: Thomson Reuters
Entity Type: Corporation
Industry: Media and Information Services
Size: $6.35 billion in revenue
Customers Affected: small subset of Thomson Reuters Global Trade customers
Incident : Data Breach THO185521124
Entity Name: M9 Telecom
Entity Type: Internet and TV Provider
Industry: Telecommunications
Location: Moscow, Russia
Size: Small
Response to the Incidents
What measures were taken in response to each incident ?
Incident : Data Exposure THO1335281022
Containment Measures: The company has immediately fixed the issue
Remediation Measures: Started notifying their customers
Communication Strategy: Downplayed the issue
Data Breach Information
What type of data was compromised in each breach ?
Incident : Data Exposure THO1335281022
Type of Data Compromised: Sensitive data, Plaintext passwords
Sensitivity of Data: High
What measures does the company take to prevent data exfiltration ?
Prevention of Data Exfiltration: The company takes the following measures to prevent data exfiltration: Started notifying their customers, .
How does the company handle incidents involving personally identifiable information (PII) ?
Handling of PII Incidents: The company handles incidents involving personally identifiable information (PII) through by the company has immediately fixed the issue and .
References
Where can I find more information about each incident ?
Incident : Data Breach THO185521124
Source: Reuters
Where can stakeholders find additional resources on cybersecurity best practices ?
Additional Resources: Stakeholders can find additional resources on cybersecurity best practices at and Source: Reuters.
Investigation Status
How does the company communicate the status of incident investigations to stakeholders ?
Communication of Investigation Status: The company communicates the status of incident investigations to stakeholders through Downplayed The Issue.
Stakeholder and Customer Advisories
Were there any advisories issued to stakeholders or customers for each incident ?
Incident : Data Exposure THO1335281022
Customer Advisories: Started notifying their customers
What advisories does the company provide to stakeholders and customers following an incident ?
Advisories Provided: The company provides the following advisories to stakeholders and customers following an incident: was Started notifying their customers.
Initial Access Broker
How did the initial access broker gain entry for each incident ?
Incident : Data Exposure THO1335281022
Reconnaissance Period: several days
Post-Incident Analysis
What were the root causes and corrective actions taken for each incident ?
Incident : Data Exposure THO1335281022
Root Causes: Unsecured ElasticSearch Database
Corrective Actions: The company has immediately fixed the issue
What corrective actions has the company taken based on post-incident analysis ?
Corrective Actions Taken: The company has taken the following corrective actions based on post-incident analysis: The company has immediately fixed the issue.
Additional Questions
General Information
Who was the attacking group in the last incident ?
Last Attacking Group: The attacking group in the last incident was an Hackers associated with Ukraine's primary intelligence agency.
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 Sensitive data, Plaintext passwords, and 20 terabytes of data erased.
What was the most significant system affected in an incident ?
Most Significant System Affected: The most significant system affected in an incident was ElasticSearch databases and .
Response to the Incidents
What containment measures were taken in the most recent incident ?
Containment Measures in Most Recent Incident: The containment measures taken in the most recent incident was The company has immediately fixed the issue.
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 20 terabytes of data erased, Sensitive data and Plaintext passwords.
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 Reuters.
Stakeholder and Customer Advisories
What was the most recent customer advisory issued ?
Most Recent Customer Advisory: The most recent customer advisory issued was an Started notifying their customers.
Initial Access Broker
What was the most recent reconnaissance period for an incident ?
Most Recent Reconnaissance Period: The most recent reconnaissance period for an incident was several days.
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RapidWhat Do We Measure ?
Incident
Finding
Grade
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.
Rankiteo is a unified scoring and risk platform that analyzes billions of signals weekly to help organizations gain faster, more actionable insights into emerging threats. Empowering teams to outpace adversaries and reduce exposure.
