Published by Global Banking and Finance Review
Posted on November 23, 2025
2 min readLast updated: January 20, 2026
Client data from major banks like JPMorgan and Citi may be exposed due to a vendor hack. SitusAMC confirmed the breach but services are operational.
(Reuters) -Client data for JPMorgan Chase, Citi, Morgan Stanley and other major banks may have been accessed in a hack of a technology vendor, the New York Times reported on Saturday, citing people familiar with the matter.
SitusAMC said in a statement on its website on Saturday that it had been the subject of a cyberattack on November 12, compromising certain information from its systems and that "data relating to some of our clients' customers may also have been impacted."
The New York-based vendor for real estate lenders did not identify any of its affected clients.
JPMorgan Chase, Citi and Morgan Stanley did not immediately respond to Reuters requests for comment.
SitusAMC said the affected data included corporate information tied to some clients' dealings with the company, including items like accounting documents and legal contracts.
"We remain focused on analyzing any potentially affected data," Michael Franco, SitusAMC chief executive said in a statement to the New York Times, adding that the company had notified law enforcement.
FBI Director Kash Patel said in a statement, according to the newspaper: "While we are working closely with affected organizations and our partners to understand the extent of potential impact, we have identified no operational impact to banking services."
Reuters could not immediately reach the FBI for comment.
The SitusAMC statement said the incident had been contained and services were fully operational, adding that no encrypting malware was involved.
(Reporting by Devika Nair in Bengaluru; Editing by Jacqueline Wong and William Mallard)
Cybersecurity refers to the practice of protecting systems, networks, and programs from digital attacks. It involves implementing measures to safeguard sensitive data and ensure the integrity of information systems.
A data breach occurs when unauthorized individuals gain access to sensitive, protected, or confidential data. This can lead to data theft, loss of privacy, and potential financial harm to individuals and organizations.
A technology vendor is a company that provides technology products or services to other businesses. This can include software, hardware, or IT services that help organizations operate efficiently.
Data protection involves safeguarding personal data from misuse, loss, or unauthorized access. It includes legal and regulatory measures to ensure that individuals' privacy is respected and maintained.
A cyberattack is an attempt to damage, disrupt, or gain unauthorized access to computer systems, networks, or devices. These attacks can result in data breaches, financial loss, and operational disruptions.
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