A financial services industry group warned US money men to be on the look out for cyber attacks after Bank of America and JPMorgan Chase experienced unexplained outages.
The Financial Services Information Sharing and Analysis Center, better known as FS-ISAC said that it had some credible intelligence regarding the potential for cyber attacks.
Apparently an unidentified person posted a statement on the internet threatening to attack Bank of America and the New York Stock Exchange as a "first step" in a campaign against US companies.
It is believed that the attacks are due to the anti-Islam film that has made its way around the internet.
Dan Holden, director of security research at Arbor Networks, told Reuters that several US banks were under assault by a distributed denial of service (DDoS) campaign.
Apparently the attacks are pretty big and aimed to disrupt websites and other computer systems at the targeted organisation by overwhelming their networks with computer traffic.
Two days ago the FBI published a "fraud alert" advising financial services firms that cyber criminals may be disrupting service to their websites in a bid to keep banks from noticing a recent surge in fraudulent large-sized wire transfers.
The theory is that the film is being used as cover for a good old fashioned cyber bank job.