Customers trying to use JPMorgan Chase's website were frustrated again by four hours of disrupted service, but there was a twist this time: The outages were caused by a technical problem with the bank's systems, not by a cyber attack.
The intermittent service disruptions began a little after 9 a.m. Pacific time on Monday. The New York-based bank advised customers to use its mobile banking services while it worked "to get things up to full speed." The site was functioning well Tuesday.
The outage occurred three weeks after JPMorgan Chase's website was knocked out by one in a series of denial-of-service attacks against banks. The cyber assaults choke online banking operations with so many phony requests that bank customers can’t use the online services.
A Middle Eastern hacker group launched the attacks on U.S. banks in September, saying they would continue until a trailer for an amateur film disparaging Muslims is removed from YouTube.