(Reuters) -SitusAMC, a technology vendor for real estate lenders said on Saturday that it had been the subject of a cyberattack on November 12, the New York Times reported on Saturday.

JPMorgan Chase ( JPM ), Citi and Morgan Stanley ( MS ) are among those that have been notified by SitusAMC that their client data may have been accessed, the report added, citing people familiar with the matter.

Reuters could not immediately verify the report.