The logo of Industrial and Commercial Bank of China (ICBC) is seen at its branch at its headquarters in Beijing, China, March 30, 2016.
The rest of Wall Street has cut off the bank’s connection to their systems pending the review, the sources said.
The attack, confirmed by ICBC on Thursday, is the latest in a string of ransom demands by hackers this year.
ICBC Financial Services, the bank's U.S. unit, said on Thursday it was investigating the attack that disrupted some of its systems, and making progress toward recovering from it.
Reporting by Paritosh Bansal and Lananh Nguyen; additional reporting by Carolina Mandl; editing by Megan DaviesOur Standards: The Thomson Reuters Trust Principles.
Persons:
Kim Kyung, ICBC, SIFMA, Paritosh Bansal, Lananh Nguyen, Carolina Mandl, Megan Davies
Organizations:
Industrial, Commercial Bank of China, REUTERS, Securities Industry, Financial Markets Association, ICBC Financial Services, Thomson
Locations:
Beijing, China, U.S