On August 18, 2024, the City of Pittsburg, California, detected a data breach affecting 39,989 individuals, including residents from Maine and Massachusetts. The breach, occurring between August 6–18, 2024, exposed highly sensitive personally identifiable information (PII), such as Social Security numbers, driver’s license numbers, credit/debit card details, and financial account information. The unauthorized access was identified through suspicious system activity, prompting an immediate containment response. While the intrusion method and attackers remain undisclosed, the exposure of financial and identity-linked data poses severe risks of identity theft, financial fraud, and long-term reputational harm. The city engaged third-party cybersecurity experts to investigate, notified federal law enforcement, and implemented enhanced authentication and threat detection measures. Affected individuals were offered 24 months of free credit monitoring (Experian IdentityWorks), written notifications with enrollment instructions, and access to a 90-day dedicated call center. Public disclosures were filed with the Attorneys General of Maine, Massachusetts, and California, and the city provided guidance on fraud prevention, including credit freezes, FTC reporting, and account monitoring. The breach underscores critical vulnerabilities in municipal digital infrastructure, with potential cascading effects on public trust and operational integrity.
Source: https://www.claimdepot.com/data-breach/city-of-pittsburg-2025
TPRM report: https://www.rankiteo.com/company/city-of-pittsburg
"id": "cit4902449100425",
"linkid": "city-of-pittsburg",
"type": "Breach",
"date": "8/2024",
"severity": "100",
"impact": "5",
"explanation": "Attack threatening the organization’s existence"{'affected_entities': [{'customers_affected': '39,989 individuals (including 2 '
'Maine residents and 9 '
'Massachusetts residents)',
'industry': 'Public Administration',
'location': 'Pittsburg, California, United States',
'name': 'City of Pittsburg, California',
'type': 'Government (Municipality)'}],
'customer_advisories': ['Review account statements for unauthorized activity',
'Order free annual credit reports',
'Consider placing fraud alerts or credit freezes',
'Contact FTC or law enforcement if identity theft is '
'suspected'],
'data_breach': {'number_of_records_exposed': '39,989',
'personally_identifiable_information': ['Names',
'Social Security '
'Numbers',
'Driver’s License '
'Numbers',
'Credit/Debit Card '
'Numbers',
'Financial Account '
'Information'],
'sensitivity_of_data': 'High (includes SSNs, financial '
'account details, driver’s license '
'numbers)',
'type_of_data_compromised': ['Personally Identifiable '
'Information (PII)']},
'date_detected': '2024-08-18',
'date_publicly_disclosed': '2024-08-23',
'description': 'On Aug. 18, 2024, the City of Pittsburg, California, '
'discovered a data breach that impacted a portion of its '
'digital environment. The breach occurred between Aug. 6 and '
'Aug. 18, 2024, and exposed sensitive personally identifiable '
'information (PII) of 39,989 individuals, including names, '
'Social Security numbers, driver’s license numbers, '
'credit/debit card numbers, and financial account information. '
'The city contained the incident, engaged third-party '
'cybersecurity specialists, and notified affected individuals, '
'offering 24 months of complimentary credit monitoring and '
'identity protection services.',
'impact': {'brand_reputation_impact': 'Moderate to High (due to exposure of '
'sensitive PII)',
'data_compromised': ['Names',
'Social Security Numbers',
'Driver’s License Numbers',
'Credit/Debit Card Numbers',
'Financial Account Information'],
'identity_theft_risk': 'High',
'payment_information_risk': 'High',
'systems_affected': ['Digital Environment (unspecified systems)']},
'initial_access_broker': {'high_value_targets': ['Water Utility Billing',
'Business License Division']},
'investigation_status': 'Concluded (scope and nature investigated by '
'third-party cybersecurity specialists)',
'post_incident_analysis': {'corrective_actions': ['Strengthened '
'authentication protocols',
'Deployed new threat '
'detection and response '
'technologies']},
'recommendations': ['Monitor financial accounts and credit reports regularly',
'Place fraud alerts or security freezes on credit files',
'Enroll in offered credit monitoring services (Experian '
'IdentityWorks)',
'Report suspected identity theft to the Federal Trade '
'Commission or law enforcement'],
'references': [{'source': 'Maine Attorney General’s Breach Disclosure'},
{'source': 'Massachusetts Attorney General’s Breach '
'Disclosure'},
{'source': 'California Attorney General’s Breach Report'}],
'regulatory_compliance': {'regulatory_notifications': ['Maine Attorney '
'General',
'Massachusetts '
'Attorney General',
'California Attorney '
'General']},
'response': {'communication_strategy': ['Public disclosure (2024-08-23)',
'Dedicated call center (available for '
'90 days)',
'Informational website',
'Written notifications mailed to '
'affected individuals with enrollment '
'instructions for credit monitoring',
'Guidance published for protective '
'measures (e.g., reviewing account '
'statements, credit freezes)'],
'containment_measures': ['Immediate containment of unauthorized '
'activity'],
'enhanced_monitoring': True,
'incident_response_plan_activated': True,
'law_enforcement_notified': True,
'remediation_measures': ['Strengthened authentication protocols',
'Deployed new threat detection and '
'response technologies'],
'third_party_assistance': ['Cybersecurity Specialists '
'(unspecified)']},
'stakeholder_advisories': ['Dedicated call center for 90 days',
'Informational website for updates',
'Written notifications with activation codes for '
'credit monitoring'],
'title': 'City of Pittsburg, California Data Breach (August 2024)',
'type': ['Data Breach', 'Unauthorized Access']}