A wave of bank cyber attacks has resumed, with many JPMorgan Chase & Co. customers unable to access their Internet banking accounts.
Chase’s online systems, under attack all day Tuesday, were still not completely operational by evening. “We’re working to get things back to full speed,” bank spokesman Michael Fusco said.
No customer data had been compromised, and the bank’s mobile, telephone and ATM networks were functioning properly, he said.
Chase was targeted by the latest in a series of denial-of-service attacks, which overwhelm websites with phony requests so that legitimate customers can’t get through.
A group identifying itself as Izz ad-Din al-Qassam Cyber Fighters has been attacking American banks off and on since September. The group, based in the Middle East, says the attacks are retaliation for a video, produced by amateur U.S. filmmakers, that mocks the prophet Muhammad.