DDoS attacks on U.S. banks

The U.S. banking security organization FS-ISAC (Financial Services Information Sharing and Analysis Center) has raised the alert level security. Apparently, there are a high risk to cyber attacks on banks.
According to FS-ISAC last week were attacked in the night from Wednesday to Thursday, two U.S. banks by distributed denial-of-service attacks (DDoS). Here computers are paralyzed by automatically in bulk, or even organized requests. There are reports that the U.S. bank JPMorgan Chase and Bank of America probably why a few hours were no longer accessible. According to a Twitter post by JPMorgan Chase only of "Issues" on Chase.com was said, would work to resolve them. Later the site was accessible again, but it said that there could be more trouble.
Just a Short FBI and FS-ISAC have information published on it, start the cybercriminals DDoS attacks as a diversion. It will be during the DDoS attacks come to unauthorized transfers of large sums of money abroad. The amounts in each case were 400,000 to 900,000 U.S. dollars. The necessary access had previously criminals surreptitiously mainly via phishing emails or variants of ZeuS malware. The DDoS attacks are to go to the account of the dirt jumpers botnets. The commercial attack software is traded in relevant forums for about $ 200.
Bank of America told the Reuters news agency that although there was a problem, but this would be low. Detailed explanations were made so far. The FS-ISAC sees the real danger in its current and already actively exploited vulnerability in Microsoft's Internet browser. Microsoft has removed the IE security hole now, but maybe not all users have updated their system. However, there are within the scope of the anti-Islam videos and views, the New York Bank of America attack. To what extent is there a connection with the attacks is not yet clear.