UL Solutions
Company Details
Linkedin ID:
ulsolutions
Website:
Employees number:
14,132
Number of followers:
388,138
NAICS:
54
Industry Type:
Homepage:
ul.com
IP Addresses:
0
Company ID:
UL _1071090
Scan Status:
In-progress
UL Solutions Company CyberSecurity Posture
ul.com
A global leader in applied safety science, UL Solutions (NYSE: ULS) transforms safety, security and sustainability challenges into opportunities for customers in more than 110 countries. UL Solutions delivers testing, inspection and certification services, together with software products and advisory offerings, that support our customers’ product innovation and business growth. The UL Mark serves as a recognized symbol of trust in our customers’ products and reflects an unwavering commitment to advancing our safety mission. We help our customers innovate, launch new products and services, navigate global markets and complex supply chains, and grow sustainably and responsibly into the future. Our science is your advantage.
UL Solutions A.I CyberSecurity Scoring
UL Solutions Risk Score (AI oriented)Between 700 and 749
UL Solutions
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UL Solutions Global Score (TPRM)XXXX
UL Solutions
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UL Solutions Company CyberSecurity News & History
Past Incidents
3
Attack Types
2
Underwriters Laboratories Inc.
Breach
Rankiteo Explanation
Attack with significant impact with customers data leaks
Description: The Maine Office of the Attorney General disclosed a data breach affecting **Underwriters Laboratories Inc. (UL Inc.)** on **May 26, 2021**, after detecting unauthorized access on **April 25, 2021**. The incident stemmed from an **external system breach (hacking)**, compromising sensitive personal data. A total of **5,994 individuals** were impacted, including **25 Maine residents**. The exposed information included **Social Security numbers (SSNs)**, a high-value target for identity theft and financial fraud. While the breach did not involve ransomware or a full-scale operational disruption, the exposure of SSNs poses long-term risks, such as fraudulent credit applications, tax fraud, and unauthorized access to financial accounts. The breach underscores vulnerabilities in UL Inc.’s cybersecurity defenses, particularly against external threats targeting personally identifiable information (PII). No immediate financial losses or systemic outages were reported, but the reputational damage and potential regulatory scrutiny (e.g., under data protection laws) remain significant concerns. The company likely faced obligations to notify affected individuals and implement remedial measures, such as credit monitoring services.
Underwriters Laboratories Inc.
Breach
Rankiteo Explanation
Attack threatening the organization's existence
Description: On May 26, 2021, the California Office of the Attorney General reported that Underwriters Laboratories Inc. and UL Inc. experienced a cybersecurity incident on February 13, 2021. This incident involved unauthorized access to personal information including names, Social Security numbers, and dates of birth. The breach potentially affected individuals from a prior incident dated October 17, 2020, but the total number of individuals affected is unknown.
UL Solutions
Ransomware
Rankiteo Explanation
Attack with significant impact with internal employee data leaks
Description: UL LLC, better known as Underwriters Laboratories, suffered a ransomware attack after the attackers encrypted its servers and caused them to shut down systems. The attack made it impossible for its employees to perform their jobs. UL shut down the system and told employees not to contact the threat actors or visit any sites related to the ransomware operation. UL also decided not to pay the ransom and started restoring from backups instead.
UL Solutions 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 UL Solutions
Incidents vs Professional Services Industry Average (This Year)
No incidents recorded for UL Solutions in 2025.
Incidents vs All-Companies Average (This Year)
No incidents recorded for UL Solutions in 2025.
Incident Types UL Solutions vs Professional Services Industry Avg (This Year)
No incidents recorded for UL Solutions in 2025.
Incident History — UL Solutions (X = Date, Y = Severity)
UL Solutions cyber incidents detection timeline including parent company and subsidiaries
UL Solutions Company Subsidiaries
A global leader in applied safety science, UL Solutions (NYSE: ULS) transforms safety, security and sustainability challenges into opportunities for customers in more than 110 countries. UL Solutions delivers testing, inspection and certification services, together with software products and advisory offerings, that support our customers’ product innovation and business growth. The UL Mark serves as a recognized symbol of trust in our customers’ products and reflects an unwavering commitment to advancing our safety mission. We help our customers innovate, launch new products and services, navigate global markets and complex supply chains, and grow sustainably and responsibly into the future. Our science is your advantage.
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UL Solutions CyberSecurity News
November 03, 2025 10:00 PM
Ex-staffer at Chicago cybersecurity firm charged with moonlighting as hacker
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October 08, 2025 07:00 AM
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Frequently Asked Questions
Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.
UL Solutions CyberSecurity History Information
Official Website of UL Solutions
The official website of UL Solutions is https://www.ul.com/solutions.
UL Solutions’s AI-Generated Cybersecurity Score
According to Rankiteo, UL Solutions’s AI-generated cybersecurity score is 738, reflecting their Moderate security posture.
How many security badges does UL Solutions’ have ?
According to Rankiteo, UL Solutions currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.
Does UL Solutions have SOC 2 Type 1 certification ?
According to Rankiteo, UL Solutions is not certified under SOC 2 Type 1.
Does UL Solutions have SOC 2 Type 2 certification ?
According to Rankiteo, UL Solutions does not hold a SOC 2 Type 2 certification.
Does UL Solutions comply with GDPR ?
According to Rankiteo, UL Solutions is not listed as GDPR compliant.
Does UL Solutions have PCI DSS certification ?
According to Rankiteo, UL Solutions does not currently maintain PCI DSS compliance.
Does UL Solutions comply with HIPAA ?
According to Rankiteo, UL Solutions is not compliant with HIPAA regulations.
Does UL Solutions have ISO 27001 certification ?
According to Rankiteo,UL Solutions is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.
Industry Classification of UL Solutions
UL Solutions operates primarily in the Professional Services industry.
Number of Employees at UL Solutions
UL Solutions employs approximately 14,132 people worldwide.
Subsidiaries Owned by UL Solutions
UL Solutions presently has no subsidiaries across any sectors.
UL Solutions’s LinkedIn Followers
UL Solutions’s official LinkedIn profile has approximately 388,138 followers.
NAICS Classification of UL Solutions
UL Solutions is classified under the NAICS code 54, which corresponds to Professional, Scientific, and Technical Services.
UL Solutions’s Presence on Crunchbase
Yes, UL Solutions has an official profile on Crunchbase, which can be accessed here: https://www.crunchbase.com/organization/ul-solutions-9403.
UL Solutions’s Presence on LinkedIn
Yes, UL Solutions maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/ulsolutions.
Cybersecurity Incidents Involving UL Solutions
As of November 28, 2025, Rankiteo reports that UL Solutions has experienced 3 cybersecurity incidents.
Number of Peer and Competitor Companies
UL Solutions has an estimated 617 peer or competitor companies worldwide.
What types of cybersecurity incidents have occurred at UL Solutions ?
Incident Types: The types of cybersecurity incidents that have occurred include Breach and Ransomware.
How does UL Solutions detect and respond to cybersecurity incidents ?
Detection and Response: The company detects and responds to cybersecurity incidents through an containment measures with system shutdown, containment measures with instructed employees not to contact threat actors or visit related sites, and remediation measures with restored from backups, and communication strategy with public disclosure via maine office of the attorney general..
Incident Details
Can you provide details on each incident ?
Title: Ransomware Attack on Underwriters Laboratories
Description: Underwriters Laboratories (UL LLC) suffered a ransomware attack where its servers were encrypted, causing a system shutdown and making it impossible for employees to perform their jobs. UL decided not to pay the ransom and restored from backups.
Type: Ransomware
Attack Vector: Server Encryption
Motivation: Ransom
Title: Underwriters Laboratories Inc. and UL Inc. Data Breach
Description: Unauthorized access to personal information including names, Social Security numbers, and dates of birth.
Date Detected: 2021-02-13
Date Publicly Disclosed: 2021-05-26
Type: Data Breach
Attack Vector: Unauthorized Access
Title: Data Breach at Underwriters Laboratories Inc. and UL Inc.
Description: The Maine Office of the Attorney General reported a data breach involving Underwriters Laboratories Inc. and UL Inc. The breach involved unauthorized access due to an external system breach (hacking), compromising individuals' Social Security numbers.
Date Detected: 2021-04-25
Date Publicly Disclosed: 2021-05-26
Type: Data Breach
Attack Vector: Hacking (External System 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 : Ransomware ULS224071222
Systems Affected: Servers
Downtime: Significant
Operational Impact: Employees unable to perform jobs
Incident : Data Breach ULS743072625
Data Compromised: Names, Social security numbers, Dates of birth
Incident : Data Breach ULS007091825
Data Compromised: Social security numbers
Identity Theft Risk: High (SSNs 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 Names, Social Security Numbers, Dates Of Birth, , Personally Identifiable Information (Pii) and .
Which entities were affected by each incident ?
Incident : Ransomware ULS224071222
Entity Name: UL LLC
Entity Type: Company
Industry: Standards and Certification
Incident : Data Breach ULS743072625
Entity Name: Underwriters Laboratories Inc.
Entity Type: Company
Industry: Safety Consulting and Certification
Incident : Data Breach ULS743072625
Entity Name: UL Inc.
Entity Type: Company
Industry: Safety Consulting and Certification
Incident : Data Breach ULS007091825
Entity Name: Underwriters Laboratories Inc.
Entity Type: Organization
Industry: Safety Science / Certification
Customers Affected: 5,994 (total), 25 (Maine residents)
Incident : Data Breach ULS007091825
Entity Name: UL Inc.
Entity Type: Organization
Industry: Safety Science / Certification
Customers Affected: 5,994 (total), 25 (Maine residents)
Response to the Incidents
What measures were taken in response to each incident ?
Incident : Ransomware ULS224071222
Containment Measures: System shutdownInstructed employees not to contact threat actors or visit related sites
Remediation Measures: Restored from backups
Incident : Data Breach ULS007091825
Communication Strategy: Public disclosure via Maine Office of the Attorney General
Data Breach Information
What type of data was compromised in each breach ?
Incident : Ransomware ULS224071222
Data Encryption: Yes
Incident : Data Breach ULS743072625
Type of Data Compromised: Names, Social security numbers, Dates of birth
Sensitivity of Data: High
Incident : Data Breach ULS007091825
Type of Data Compromised: Personally identifiable information (pii)
Number of Records Exposed: 5,994
Sensitivity of Data: High (Social Security numbers)
Personally Identifiable Information: Social Security numbers
What measures does the company take to prevent data exfiltration ?
Prevention of Data Exfiltration: The company takes the following measures to prevent data exfiltration: Restored from backups, .
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 system shutdown, instructed employees not to contact threat actors or visit related sites and .
Ransomware Information
Was ransomware involved in any of the incidents ?
Regulatory Compliance
Were there any regulatory violations and fines imposed for each incident ?
Incident : Data Breach ULS007091825
Regulatory Notifications: Maine Office of the Attorney General
References
Where can I find more information about each incident ?
Incident : Data Breach ULS743072625
Source: California Office of the Attorney General
Date Accessed: 2021-05-26
Incident : Data Breach ULS007091825
Source: Maine Office of the Attorney General
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: 2021-05-26, and Source: Maine Office of the Attorney General.
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 Public disclosure via Maine Office of the Attorney General.
Additional Questions
General Information
Has the company ever paid ransoms ?
Ransom Payment History: The company has Paid ransoms in the past.
Incident Details
What was the most recent incident detected ?
Most Recent Incident Detected: The most recent incident detected was on 2021-02-13.
What was the most recent incident publicly disclosed ?
Most Recent Incident Publicly Disclosed: The most recent incident publicly disclosed was on 2021-05-26.
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, Social Security numbers, dates of birth, , Social Security numbers and .
What was the most significant system affected in an incident ?
Most Significant System Affected: The most significant system affected in an incident was Servers.
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 System shutdownInstructed employees not to contact threat actors or visit related sites.
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 dates of birth, names and Social Security numbers.
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 6.0K.
Ransomware Information
What was the highest ransom paid in a ransomware incident ?
Highest Ransom Paid: The highest ransom paid in a ransomware incident was No.
References
What is the most recent source of information about an incident ?
Most Recent Source: The most recent source of information about an incident are Maine Office of the Attorney General and California Office of the Attorney General.
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Latest Global CVEs (Not Company-Specific)
Description
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to versions 19.2.16, 20.3.14, and 21.0.1, there is a XSRF token leakage via protocol-relative URLs in angular HTTP clients. The vulnerability is a Credential Leak by App Logic that leads to the unauthorized disclosure of the Cross-Site Request Forgery (XSRF) token to an attacker-controlled domain. Angular's HttpClient has a built-in XSRF protection mechanism that works by checking if a request URL starts with a protocol (http:// or https://) to determine if it is cross-origin. If the URL starts with protocol-relative URL (//), it is incorrectly treated as a same-origin request, and the XSRF token is automatically added to the X-XSRF-TOKEN header. This issue has been patched in versions 19.2.16, 20.3.14, and 21.0.1. A workaround for this issue involves avoiding using protocol-relative URLs (URLs starting with //) in HttpClient requests. All backend communication URLs should be hardcoded as relative paths (starting with a single /) or fully qualified, trusted absolute URLs.
Risk Information
cvss4
Base: 7.7
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/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
- https://github.com/angular/angular/commit/0276479e7d0e280e0f8d26fa567d3b7aa97a516f
- https://github.com/angular/angular/commit/05fe6686a97fa0bcd3cf157805b3612033f975bc
- https://github.com/angular/angular/commit/3240d856d942727372a705252f7c8c115394a41e
- https://github.com/angular/angular/releases/tag/19.2.16
- https://github.com/angular/angular/releases/tag/20.3.14
- https://github.com/angular/angular/releases/tag/21.0.1
- https://github.com/angular/angular/security/advisories/GHSA-58c5-g7wp-6w37
Description
Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. An Uncontrolled Recursion vulnerability in node-forge versions 1.3.1 and below enables remote, unauthenticated attackers to craft deep ASN.1 structures that trigger unbounded recursive parsing. This leads to a Denial-of-Service (DoS) via stack exhaustion when parsing untrusted DER inputs. This issue has been patched in version 1.3.2.
Risk Information
cvss4
Base: 8.7
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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
Description
Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. An Integer Overflow vulnerability in node-forge versions 1.3.1 and below enables remote, unauthenticated attackers to craft ASN.1 structures containing OIDs with oversized arcs. These arcs may be decoded as smaller, trusted OIDs due to 32-bit bitwise truncation, enabling the bypass of downstream OID-based security decisions. This issue has been patched in version 1.3.2.
Risk Information
cvss4
Base: 6.3
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/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
Description
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Prior to versions 7.0.13 and 8.0.2, working with large buffers in Lua scripts can lead to a stack overflow. Users of Lua rules and output scripts may be affected when working with large buffers. This includes a rule passing a large buffer to a Lua script. This issue has been patched in versions 7.0.13 and 8.0.2. A workaround for this issue involves disabling Lua rules and output scripts, or making sure limits, such as stream.depth.reassembly and HTTP response body limits (response-body-limit), are set to less than half the stack size.
Risk Information
cvss3
Base: 7.5
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. In versions from 8.0.0 to before 8.0.2, a NULL dereference can occur when the entropy keyword is used in conjunction with base64_data. This issue has been patched in version 8.0.2. A workaround involves disabling rules that use entropy in conjunction with base64_data.
Risk Information
cvss3
Base: 7.5
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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