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Quinn Emanuel Urquhart & Sullivan, LLP is a 1000+ lawyer business litigation firm—the largest in the world devoted solely to business litigation and arbitration. Our lawyers have tried over 2,300 cases and won 88% of them. When we represent defendants, our trial experience gets us better settlements or defense verdicts. When representing plaintiffs, our lawyers have won over $70 billion in judgments and settlements. We have also obtained seven 9-figure jury verdicts, fifty-one 9-figure settlements, and twenty 10-figure settlements.

Quinn Emanuel A.I CyberSecurity Scoring

Quinn Emanuel

Company Details

Linkedin ID:

quinn-emanuel

Employees number:

1,961

Number of followers:

32,686

NAICS:

54111

Industry Type:

Law Practice

Homepage:

quinnemanuel.com

IP Addresses:

0

Company ID:

QUI_1822433

Scan Status:

In-progress

AI scoreQuinn Emanuel Risk Score (AI oriented)

Between 700 and 749

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Quinn Emanuel Law Practice
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globalscoreQuinn Emanuel Global Score (TPRM)

XXXX

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Quinn Emanuel Law Practice
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Quinn Emanuel Company CyberSecurity News & History

Past Incidents
1
Attack Types
1
EntityTypeSeverityImpactSeenBlog DetailsSupply Chain SourceIncident DetailsView
Quinn EmanuelBreach5025/2022NA
Rankiteo Explanation :
Attack limited on finance or reputation

Description: The California Office of the Attorney General reported a data breach at Quinn Emanuel Urquhart & Sullivan, LLP, involving unauthorized access to data between May 13, 2022, and May 14, 2022. The breach potentially affected an unknown number of individuals. The incident was reported on July 21, 2023, and a notification letter was made available detailing the incident and response actions. The breach involved unauthorized access to data, which could have compromised sensitive information, although the exact nature and extent of the data compromised were not specified.

Quinn Emanuel Urquhart & Sullivan, LLP
Breach
Severity: 50
Impact: 2
Seen: 5/2022
Blog:
Supply Chain Source: NA
Rankiteo Explanation
Attack limited on finance or reputation

Description: The California Office of the Attorney General reported a data breach at Quinn Emanuel Urquhart & Sullivan, LLP, involving unauthorized access to data between May 13, 2022, and May 14, 2022. The breach potentially affected an unknown number of individuals. The incident was reported on July 21, 2023, and a notification letter was made available detailing the incident and response actions. The breach involved unauthorized access to data, which could have compromised sensitive information, although the exact nature and extent of the data compromised were not specified.

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Quinn Emanuel Company Scoring based on AI Models

Cyber Incidents Likelihood 3 - 6 - 9 months

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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 Quinn Emanuel

Incidents vs Law Practice Industry Average (This Year)

No incidents recorded for Quinn Emanuel in 2026.

Incidents vs All-Companies Average (This Year)

No incidents recorded for Quinn Emanuel in 2026.

Incident Types Quinn Emanuel vs Law Practice Industry Avg (This Year)

No incidents recorded for Quinn Emanuel in 2026.

Incident History — Quinn Emanuel (X = Date, Y = Severity)

Quinn Emanuel cyber incidents detection timeline including parent company and subsidiaries

Quinn Emanuel Company Subsidiaries

SubsidiaryImage

Quinn Emanuel Urquhart & Sullivan, LLP is a 1000+ lawyer business litigation firm—the largest in the world devoted solely to business litigation and arbitration. Our lawyers have tried over 2,300 cases and won 88% of them. When we represent defendants, our trial experience gets us better settlements or defense verdicts. When representing plaintiffs, our lawyers have won over $70 billion in judgments and settlements. We have also obtained seven 9-figure jury verdicts, fifty-one 9-figure settlements, and twenty 10-figure settlements.

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Quinn Emanuel Similar Companies

DLA Piper

DLA Piper is a global law firm helping our clients achieve their goals wherever they do business. Our pursuit of innovation has transformed our delivery of legal services. With offices in the Americas, Europe, the Middle East, Africa and Asia Pacific, we deliver exceptional outcomes on cross-border

newsone

Quinn Emanuel CyberSecurity News

March 30, 2026 12:00 PM
Quinn Emanuel Appoints New DC Office Co-Head

Quinn Emanuel Urquhart & Sullivan named Alexander "AJ" Merton co-managing partner of its Washington, D.C., office, the firm announced Monday...

March 11, 2026 07:00 AM
Gen Digital Overturns $481 Million Patent Award in Columbia University Lawsuit

By Blake Brittain. WASHINGTON, March 11 (Reuters) - A ⁠U.S. ⁠appeals court on Wednesday overturned ⁠a $481 million ruling that New York's...

January 28, 2026 08:00 AM
Bankruptcy Group Of The Year: Quinn Emanuel

Quinn Emanuel Urquhart & Sullivan LLP in 2025 notched wins in novel bankruptcy issues, fending off a Brazilian telecommunication group's bid...

January 27, 2026 08:00 AM
New Lawsuit Claims that Meta Can Read All the WhatsApp Users Messages

A new class-action lawsuit accuses Meta Platforms of misleading billions of WhatsApp users by claiming their messages are protected by...

January 27, 2026 08:00 AM
New Lawsuit Alleges Meta Can Read All WhatsApp Users’ Messages

The complaint, representing over 2 billion users across 180 countries, claims Meta contradicts its end-to-end encryption marketing while...

January 27, 2026 08:00 AM
Meta Faces Legal Action Over Claims of Accessing All WhatsApp User Messages

A class-action lawsuit filed in San Francisco federal court accuses Meta Platforms of systematically misleading billions of WhatsApp users.

January 22, 2026 08:00 AM
Simpson Thacher Adds Quinn Emanuel Atty To New SF Office

A Quinn Emanuel Urquhart & Sullivan LLP attorney who worked on high-profile intellectual property matters representing Google and Jane...

January 22, 2026 08:00 AM
Nardinelli Exits Quinn Emanuel for Simpson San Francisco IP Team

Jeff Nardinelli joined Simpson Thacher & Bartlett as a partner in its intellectual property litigation practice in San Francisco,...

January 20, 2026 08:00 AM
Quinn Emanuel Taps Hadef for Top Cross-Border Disputes Partner in the UAE

Quinn Emanuel Urquhart & Sullivan U.K. has hired an international dispute-resolution specialist from Hadef & Partners in Dubai,...

faq

Frequently Asked Questions

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

Quinn Emanuel CyberSecurity History Information

Official Website of Quinn Emanuel

The official website of Quinn Emanuel is http://www.quinnemanuel.com.

Quinn Emanuel’s AI-Generated Cybersecurity Score

According to Rankiteo, Quinn Emanuel’s AI-generated cybersecurity score is 737, reflecting their Moderate security posture.

How many security badges does Quinn Emanuel’ have ?

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

Has Quinn Emanuel been affected by any supply chain cyber incidents ?

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

Does Quinn Emanuel have SOC 2 Type 1 certification ?

According to Rankiteo, Quinn Emanuel is not certified under SOC 2 Type 1.

Does Quinn Emanuel have SOC 2 Type 2 certification ?

According to Rankiteo, Quinn Emanuel does not hold a SOC 2 Type 2 certification.

Does Quinn Emanuel comply with GDPR ?

According to Rankiteo, Quinn Emanuel is not listed as GDPR compliant.

Does Quinn Emanuel have PCI DSS certification ?

According to Rankiteo, Quinn Emanuel does not currently maintain PCI DSS compliance.

Does Quinn Emanuel comply with HIPAA ?

According to Rankiteo, Quinn Emanuel is not compliant with HIPAA regulations.

Does Quinn Emanuel have ISO 27001 certification ?

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

Industry Classification of Quinn Emanuel

Quinn Emanuel operates primarily in the Law Practice industry.

Number of Employees at Quinn Emanuel

Quinn Emanuel employs approximately 1,961 people worldwide.

Subsidiaries Owned by Quinn Emanuel

Quinn Emanuel presently has no subsidiaries across any sectors.

Quinn Emanuel’s LinkedIn Followers

Quinn Emanuel’s official LinkedIn profile has approximately 32,686 followers.

NAICS Classification of Quinn Emanuel

Quinn Emanuel is classified under the NAICS code 54111, which corresponds to Offices of Lawyers.

Quinn Emanuel’s Presence on Crunchbase

No, Quinn Emanuel does not have a profile on Crunchbase.

Quinn Emanuel’s Presence on LinkedIn

Yes, Quinn Emanuel maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/quinn-emanuel.

Cybersecurity Incidents Involving Quinn Emanuel

As of April 03, 2026, Rankiteo reports that Quinn Emanuel has experienced 1 cybersecurity incidents.

Number of Peer and Competitor Companies

Quinn Emanuel has an estimated 16,000 peer or competitor companies worldwide.

What types of cybersecurity incidents have occurred at Quinn Emanuel ?

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

Incident Details

Can you provide details on each incident ?

Incident : Data Breach

Title: Data Breach at Quinn Emanuel Urquhart & Sullivan, LLP

Description: Unauthorized access to data between May 13, 2022 and May 14, 2022, potentially affecting an unknown number of individuals.

Date Publicly Disclosed: 2023-07-21

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

Which entities were affected by each incident ?

Incident : Data Breach QUI139072625

Entity Name: Quinn Emanuel Urquhart & Sullivan, LLP

Entity Type: Law Firm

Industry: Legal

References

Where can I find more information about each incident ?

Incident : Data Breach QUI139072625

Source: California Office of the Attorney General

Date Accessed: 2023-07-21

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: 2023-07-21.

Additional Questions

Incident Details

What was the most recent incident publicly disclosed ?

Most Recent Incident Publicly Disclosed: The most recent incident publicly disclosed was on 2023-07-21.

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

Hirschmann EagleSDV version 05.4.01 prior to 05.4.02 contains a denial-of-service vulnerability that causes the device to crash during session establishment when using TLS 1.0 or TLS 1.1. Attackers can trigger a crash by initiating TLS connections with these protocol versions to disrupt service availability.

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
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

The stored API keys in temporary browser client is not marked as protected allowing for JavScript console or other errors to allow for extraction of the encryption credentials.

Description

XSS vulnerability in cveInterface.js allows for inject HTML to be passed to display, as cveInterface trusts input from CVE API services

Description

Multiple reflected cross-site scripting (XSS) vulnerabilities in the login.php endpoint of Interzen Consulting S.r.l ZenShare Suite v17.0 allows attackers to execute arbitrary Javascript in the context of the user's browser via a crafted URL injected into the codice_azienda and red_url parameters.

Description

A reflected cross-site scripting (XSS) vulnerability in the login_newpwd.php endpoint of Interzen Consulting S.r.l ZenShare Suite v17.0 allows attackers to execute arbitrary Javascript in the context of the user's browser via a crafted URL injected into the codice_azienda parameter.

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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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