Client data from major financial institutions such as JPMorgan Chase, Citi, and Morgan Stanley may have been compromised due to a cyberattack on a technology provider. This alarming development was reported by the New York Times, citing sources familiar with the incident.
The technology vendor, SitusAMC, confirmed via a statement on its website that it experienced a cyberattack on November 12. This breach reportedly affected certain aspects of its systems, leading to potential exposure of data linked to its clients’ customers. However, SitusAMC did not disclose the names of any affected clients in its announcement.
The compromised data is said to include sensitive corporate information relating to clients’ transactions with SitusAMC, encompassing a range of documents such as accounting records and legal contracts. Michael Franco, the chief executive of SitusAMC, stated that the company is actively working to assess the extent of the data affected by the breach and noted that law enforcement has been informed about the incident.
In an official statement, FBI Director Kash Patel indicated that while the agency is collaborating with the organizations involved to evaluate the potential impact of the breach, no operational disruptions to banking services have been identified at this point. Despite the gravity of the situation, Reuters has been unable to establish contact with the FBI for further comments.
SitusAMC is assuring clients that the incident has been contained and its services remain fully operational. The company also clarified that the attack did not involve any encrypting malware, which often accompanies such cyber incidents.
In the wake of this revelation, stakeholders in the financial sector are likely to remain vigilant as investigations proceed to shed light on the full scope of the breach and its implications for clients and services alike.

