SL
Company Details
Linkedin ID:
seiu-local-1000
Website:
Employees number:
237
Number of followers:
2,058
NAICS:
541821
Industry Type:
Homepage:
seiu1000.org
IP Addresses:
0
Company ID:
SEI_1355897
Scan Status:
In-progress
SEIU Local 1000 Company CyberSecurity Posture
seiu1000.org
Service Employees International Union (SEIU) Local 1000 represents 96,000 state employees, including the overwhelming majority of white collar professionals, clerical staff, information technology workers, teachers, printers, custodians, auditors, nurses and other health care professionals.
SEIU Local 1000 A.I CyberSecurity Scoring
SL Risk Score (AI oriented)Between 650 and 699
SL
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SL
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SL Company CyberSecurity News & History
Past Incidents
1
Attack Types
1
Civil Service Employees Association, Inc., Local 1000, AFSCME and AFL-CIO: Civil Service Employees Association Data Breach Lawsuit Investigation
Breach
Rankiteo Explanation
Attack with significant impact with customers data leaks
Description: CSEA Local 1000 Data Breach Exposes Sensitive Information of Over 47,000 Individuals Shamis & Gentile P.A., a class action law firm specializing in data breach cases, is investigating a cybersecurity incident involving the Civil Service Employees Association, Inc., Local 1000, AFSCME, AFL-CIO (CSEA Local 1000), New York’s largest labor union. The breach, discovered on May 30, 2025, exposed the personally identifiable information (PII) of 47,352 individuals nationwide. CSEA Local 1000 represents over 250,000 members, including state and local government employees, firefighters, school staff, and retirees across six regional branches. The union is affiliated with AFSCME and the AFL-CIO, making it the largest AFSCME constituent in New York. Timeline and Response After detecting suspicious activity on its systems, CSEA Local 1000 launched an investigation, took affected systems offline, and engaged cybersecurity experts. The probe revealed that an unauthorized party accessed its systems between May 3 and May 31, 2025, compromising files containing sensitive data. Affected individuals began receiving written notifications in January 2026. Exposed Information The breach exposed the following data: - Full names - Social Security numbers CSEA Local 1000 reported the incident to relevant government agencies and provided resources to help impacted individuals mitigate risks. Legal Action Underway Shamis & Gentile P.A. is evaluating potential claims on behalf of those affected, with compensation eligibility under review for victims of the breach.
SL 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 SL
Incidents vs Government Relations Services Industry Average (This Year)
No incidents recorded for SEIU Local 1000 in 2026.
Incidents vs All-Companies Average (This Year)
No incidents recorded for SEIU Local 1000 in 2026.
Incident Types SL vs Government Relations Services Industry Avg (This Year)
No incidents recorded for SEIU Local 1000 in 2026.
Incident History — SL (X = Date, Y = Severity)
SL cyber incidents detection timeline including parent company and subsidiaries
SL Company Subsidiaries
Service Employees International Union (SEIU) Local 1000 represents 96,000 state employees, including the overwhelming majority of white collar professionals, clerical staff, information technology workers, teachers, printers, custodians, auditors, nurses and other health care professionals.
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SL CyberSecurity News
February 07, 2024 08:00 AM
Data breach at California state worker union targeted social security numbers, home addresses
California's largest state employee union fell victim to a ransomware attack last month that, according to a cybersecurity analyst, likely exposed Social...
September 26, 2022 07:00 AM
State workers can double their pay through union apprenticeships. Newsom wants more of them
SEIU Local 1000 has built apprentice programs outside the traditional trades — in nursing, financial services, cybersecurity and maintaining one...
June 07, 2017 07:00 AM
State worker bonuses were ‘effective’ bait in fake phishing scam
Teasing state workers with long-promised contract bonuses is a good way to get them to click on a bogus email.
May 15, 2017 07:00 AM
Calif. State Dept. Uses CU’s Logo (Without Asking) In Email Phishing Test
In an attempt to test workers' vulnerabilities to email phishing scams, a California state department sent an email to employees that...
May 11, 2017 07:00 AM
California state department tries to trick employees with fake email over bonuses
A California state department emailed a fake phishing scam to its employees Wednesday that manipulated the logo of Golden 1 Credit Union.
Frequently Asked Questions
Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.
SL CyberSecurity History Information
Official Website of SEIU Local 1000
The official website of SEIU Local 1000 is http://www.seiu1000.org.
SEIU Local 1000’s AI-Generated Cybersecurity Score
According to Rankiteo, SEIU Local 1000’s AI-generated cybersecurity score is 681, reflecting their Weak security posture.
How many security badges does SEIU Local 1000’ have ?
According to Rankiteo, SEIU Local 1000 currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.
Has SEIU Local 1000 been affected by any supply chain cyber incidents ?
According to Rankiteo, SEIU Local 1000 has not been affected by any supply chain cyber incidents, and no incident IDs are currently listed for the organization.
Does SEIU Local 1000 have SOC 2 Type 1 certification ?
According to Rankiteo, SEIU Local 1000 is not certified under SOC 2 Type 1.
Does SEIU Local 1000 have SOC 2 Type 2 certification ?
According to Rankiteo, SEIU Local 1000 does not hold a SOC 2 Type 2 certification.
Does SEIU Local 1000 comply with GDPR ?
According to Rankiteo, SEIU Local 1000 is not listed as GDPR compliant.
Does SEIU Local 1000 have PCI DSS certification ?
According to Rankiteo, SEIU Local 1000 does not currently maintain PCI DSS compliance.
Does SEIU Local 1000 comply with HIPAA ?
According to Rankiteo, SEIU Local 1000 is not compliant with HIPAA regulations.
Does SEIU Local 1000 have ISO 27001 certification ?
According to Rankiteo,SEIU Local 1000 is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.
Industry Classification of SEIU Local 1000
SEIU Local 1000 operates primarily in the Government Relations Services industry.
Number of Employees at SEIU Local 1000
SEIU Local 1000 employs approximately 237 people worldwide.
Subsidiaries Owned by SEIU Local 1000
SEIU Local 1000 presently has no subsidiaries across any sectors.
SEIU Local 1000’s LinkedIn Followers
SEIU Local 1000’s official LinkedIn profile has approximately 2,058 followers.
NAICS Classification of SEIU Local 1000
SEIU Local 1000 is classified under the NAICS code 541821, which corresponds to Others.
SEIU Local 1000’s Presence on Crunchbase
No, SEIU Local 1000 does not have a profile on Crunchbase.
SEIU Local 1000’s Presence on LinkedIn
Yes, SEIU Local 1000 maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/seiu-local-1000.
Cybersecurity Incidents Involving SEIU Local 1000
As of January 25, 2026, Rankiteo reports that SEIU Local 1000 has experienced 1 cybersecurity incidents.
Number of Peer and Competitor Companies
SEIU Local 1000 has an estimated 1,497 peer or competitor companies worldwide.
What types of cybersecurity incidents have occurred at SEIU Local 1000 ?
Incident Types: The types of cybersecurity incidents that have occurred include Breach.
How does SEIU Local 1000 detect and respond to cybersecurity incidents ?
Detection and Response: The company detects and responds to cybersecurity incidents through an incident response plan activated with yes, and third party assistance with cybersecurity experts, and containment measures with affected systems taken offline, and communication strategy with written notifications to affected individuals..
Incident Details
Can you provide details on each incident ?
Title: CSEA Local 1000 Data Breach Exposes Sensitive Information of Over 47,000 Individuals
Description: A cybersecurity incident involving the Civil Service Employees Association, Inc., Local 1000, AFSCME, AFL-CIO (CSEA Local 1000) exposed the personally identifiable information (PII) of 47,352 individuals nationwide. The breach was discovered on May 30, 2025, and involved unauthorized access to systems containing sensitive data.
Date Detected: 2025-05-30
Date Publicly Disclosed: 2026-01
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 SEI1769024138
Data Compromised: Personally identifiable information (PII) including full names and Social Security numbers
Legal Liabilities: Potential claims under evaluation
Identity Theft Risk: High
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).
Which entities were affected by each incident ?
Incident : Data Breach SEI1769024138
Entity Name: Civil Service Employees Association, Inc., Local 1000, AFSCME, AFL-CIO (CSEA Local 1000)
Entity Type: Labor Union
Industry: Public Sector / Labor Representation
Location: New York, USA
Size: 250,000 members
Customers Affected: 47,352 individuals
Response to the Incidents
What measures were taken in response to each incident ?
Incident : Data Breach SEI1769024138
Incident Response Plan Activated: Yes
Third Party Assistance: Cybersecurity experts
Containment Measures: Affected systems taken offline
Communication Strategy: Written notifications to affected individuals
What is the company's incident response plan?
Incident Response Plan: The company's incident response plan is described as Yes.
How does the company involve third-party assistance in incident response ?
Third-Party Assistance: The company involves third-party assistance in incident response through Cybersecurity experts.
Data Breach Information
What type of data was compromised in each breach ?
Incident : Data Breach SEI1769024138
Type of Data Compromised: Personally identifiable information (PII)
Number of Records Exposed: 47,352
Sensitivity of Data: High (Social Security numbers, full names)
Personally Identifiable Information: Full names, Social Security numbers
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 affected systems taken offline.
Regulatory Compliance
Were there any regulatory violations and fines imposed for each incident ?
Incident : Data Breach SEI1769024138
Legal Actions: Potential claims under evaluation
Regulatory Notifications: Reported to relevant government agencies
How does the company ensure compliance with regulatory requirements ?
Ensuring Regulatory Compliance: The company ensures compliance with regulatory requirements through Potential claims under evaluation.
References
Where can I find more information about each incident ?
Incident : Data Breach SEI1769024138
Source: Shamis & Gentile P.A.
Where can stakeholders find additional resources on cybersecurity best practices ?
Additional Resources: Stakeholders can find additional resources on cybersecurity best practices at and Source: Shamis & Gentile P.A..
Investigation Status
What is the current status of the investigation for each incident ?
Incident : Data Breach SEI1769024138
Investigation Status: Completed
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 Written notifications to affected individuals.
Stakeholder and Customer Advisories
Were there any advisories issued to stakeholders or customers for each incident ?
Incident : Data Breach SEI1769024138
Customer Advisories: Written notifications sent to affected individuals
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 Written notifications sent to affected individuals.
Post-Incident Analysis
What is the company's process for conducting post-incident analysis ?
Post-Incident Analysis Process: The company's process for conducting post-incident analysis is described as Cybersecurity experts.
Additional Questions
Incident Details
What was the most recent incident detected ?
Most Recent Incident Detected: The most recent incident detected was on 2025-05-30.
What was the most recent incident publicly disclosed ?
Most Recent Incident Publicly Disclosed: The most recent incident publicly disclosed was on 2026-01.
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 was Personally identifiable information (PII) including full names and Social Security numbers.
Response to the Incidents
What third-party assistance was involved in the most recent incident ?
Third-Party Assistance in Most Recent Incident: The third-party assistance involved in the most recent incident was Cybersecurity experts.
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 Affected systems taken offline.
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 was Personally identifiable information (PII) including full 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 47.4K.
Regulatory Compliance
What was the most significant legal action taken for a regulatory violation ?
Most Significant Legal Action: The most significant legal action taken for a regulatory violation was Potential claims under evaluation.
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 Shamis & Gentile P.A..
Investigation Status
What is the current status of the most recent investigation ?
Current Status of Most Recent Investigation: The current status of the most recent investigation is Completed.
Stakeholder and Customer Advisories
What was the most recent customer advisory issued ?
Most Recent Customer Advisory: The most recent customer advisory issued was an Written notifications sent to affected individuals.
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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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Leverage real-time insights on active threats, malware campaigns, and emerging vulnerabilities to proactively defend against evolving cyberattacks.
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