A hacker group calling itself Izz ad-din Al qassam is claiming responsibility for briefly disabling the Web site for Bank of America yesterday.

In a Pastebin post, the hackers wrote, "United States of America with the help of Zionist Regime made a Sacrilegious movie insulting all the religions not only Islam. All the Muslims worldwide must unify and Stand against the action, Muslims must do whatever is necessary to stop spreading this movie. ... We, Cyber fighters of Izz ad-din Al qassam will attack the Bank of America and New York Stock Exchange for the first step. These Targets are properties of American-Zionist Capitalists."

"Bank of America said its website is available but some customers may experience occasional slowness," write Reuters' Rick Rothacker and Jim Finkle. "'We are working to ensure full availability,' bank spokesman Mark Pipitone said. Asked whether the website was the victim of a denial-of-service attack, he said: 'I can tell you that we continuously take proactive measures to secure our systems.' The New York Stock Exchange, operated by NYSE Euronext, declined to comment."

"The movie referred to in the message is likely the infamous 'Innocence of Muslims,' a garish amateur propaganda piece that has been roiling Muslim communities around the world for more than a week now," writes Betabeat's Steve Huff.

"In October 2011, Bank of America had nearly a week of website trouble, which the bank blamed on software upgrades and heavy traffic," notes SecurityNewsDaily's Paul Wagenseil.