SitusAMC

SitusAMC, a technology provider for major financial institutions, confirmed a **data breach** exposing corporate client data, including **accounting records and legal agreements** tied to its relationships with firms like JPMorgan Chase and Citi. The breach’s full scope—such as the number of affected consumers or the exact volume of compromised data—remains under investigation by the company and third-party advisors. While the FBI acknowledged the incident, it reported no immediate disruptions to banking services. The breach raises concerns over potential financial fraud, reputational damage, and regulatory scrutiny, though no direct evidence of stolen customer PII (e.g., bank credentials or identities) has been publicly confirmed. The attack’s focus on **corporate and client contractual data** suggests operational and legal risks for the impacted financial entities, though the absence of confirmed consumer harm or systemic banking failures tempers the immediate fallout.

Source: https://www.aol.com/articles/data-breach-revealed-potentially-impacting-165700071.html

SitusAMC cybersecurity rating report: https://www.rankiteo.com/company/situsamc

"id": "SIT4294342112625",
"linkid": "situsamc",
"type": "Breach",
"date": "11/2025",
"severity": "60",
"impact": "3",
"explanation": "Attack with significant impact with internal employee data leaks"

{'affected_entities': [{'industry': 'Financial Services',
                        'name': 'SitusAMC',
                        'type': 'Technology Provider'},
                       {'industry': 'Banking',
                        'name': 'JPMorgan Chase',
                        'type': 'Financial Institution'},
                       {'industry': 'Banking',
                        'name': 'Citi',
                        'type': 'Financial Institution'}],
 'data_breach': {'data_exfiltration': 'Confirmed (under investigation)',
                 'sensitivity_of_data': 'High (financial/legal)',
                 'type_of_data_compromised': ['accounting records',
                                              'legal agreements',
                                              'corporate client relationship '
                                              'data']},
 'date_publicly_disclosed': '2023-10-21',
 'description': 'SitusAMC, a technology provider for financial firms, suffered '
                'a data breach impacting corporate data of its clients, '
                'including accounting records and legal agreements. Major '
                'institutions like JPMorgan Chase and Citi were notified of '
                'potential exposure. The scope, nature, and extent of the '
                'impact remain under investigation. The FBI is aware but has '
                'not identified issues with banking services.',
 'impact': {'brand_reputation_impact': 'Potential (under investigation)',
            'data_compromised': ['accounting records', 'legal agreements']},
 'initial_access_broker': {'high_value_targets': ['financial institutions',
                                                  'corporate client data']},
 'investigation_status': 'Ongoing (scope, nature, and extent under '
                         'investigation)',
 'references': [{'source': 'CNN'},
                {'date_accessed': '2023-10-21',
                 'source': 'SitusAMC Public Statement'}],
 'response': {'communication_strategy': 'Public statement and client '
                                        'notifications',
              'incident_response_plan_activated': True,
              'law_enforcement_notified': True,
              'third_party_assistance': True},
 'stakeholder_advisories': 'Clients notified (including JPMorgan Chase, Citi)',
 'title': 'SitusAMC Data Breach Affecting Major Financial Institutions',
 'type': 'Data Breach'}