(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, includi

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