Cyberattack on New York Labor Union Exposes Data of 47,000 Members
The Civil Service Employees Association (CSEA), a prominent labor union representing state and local government workers in New York, suffered a data breach in May, resulting in the theft of personal information belonging to over 47,000 members. According to a breach notice filed with the Maine Attorney General’s Office, attackers infiltrated CSEA’s systems between May 3 and May 31, potentially accessing names, Social Security numbers, and other sensitive details.
Upon discovering the compromise, CSEA took immediate action, shutting down affected systems, resetting passwords, and deploying advanced security measures. The union collaborated with cybersecurity and privacy firms to investigate the incident and determine the scope of the breach. While no evidence of data misuse has been found, affected individuals were advised to monitor for potential identity theft and fraud.
The breach highlights the ongoing risks faced by labor organizations and government-affiliated entities, underscoring the need for robust cybersecurity defenses in protecting sensitive member data.
Source: https://www.scworld.com/brief/over-47k-compromised-in-new-york-labor-union-breach
CSEA Local 1000 cybersecurity rating report: https://www.rankiteo.com/company/csea-local-1000
"id": "CSE1769174958",
"linkid": "csea-local-1000",
"type": "Breach",
"date": "1/2026",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"{'affected_entities': [{'customers_affected': '47,000 members',
'industry': "Government/Workers' Union",
'location': 'New York, USA',
'name': 'Civil Service Employees Association (CSEA)',
'type': 'Labor Union'}],
'customer_advisories': 'Affected individuals were advised to monitor for '
'potential identity theft and fraud.',
'data_breach': {'data_exfiltration': 'Yes',
'number_of_records_exposed': '47,000',
'personally_identifiable_information': 'Yes',
'sensitivity_of_data': 'High (Social Security numbers, '
'personally identifiable information)',
'type_of_data_compromised': 'Personal information (names, '
'Social Security numbers, and '
'other sensitive details)'},
'description': 'The Civil Service Employees Association (CSEA), a prominent '
'labor union representing state and local government workers '
'in New York, suffered a data breach in May, resulting in the '
'theft of personal information belonging to over 47,000 '
'members. Attackers infiltrated CSEA’s systems between May 3 '
'and May 31, potentially accessing names, Social Security '
'numbers, and other sensitive details.',
'impact': {'data_compromised': 'Personal information (names, Social Security '
'numbers, and other sensitive details)',
'identity_theft_risk': 'Potential identity theft and fraud'},
'investigation_status': 'Ongoing',
'lessons_learned': 'Highlights the ongoing risks faced by labor organizations '
'and government-affiliated entities, underscoring the need '
'for robust cybersecurity defenses in protecting sensitive '
'member data.',
'references': [{'source': 'Maine Attorney General’s Office'}],
'regulatory_compliance': {'regulatory_notifications': 'Breach notice filed '
'with the Maine '
'Attorney General’s '
'Office'},
'response': {'communication_strategy': 'Breach notice filed with the Maine '
'Attorney General’s Office; advisories '
'to affected individuals',
'containment_measures': 'Shut down affected systems, reset '
'passwords',
'incident_response_plan_activated': 'Yes',
'remediation_measures': 'Deployed advanced security measures',
'third_party_assistance': 'Cybersecurity and privacy firms'},
'title': 'Cyberattack on New York Labor Union Exposes Data of 47,000 Members',
'type': 'Data Breach'}