Bank of America, Chase Bank, Wells Fargo, PNC Bank, U.S. Bancorp, SunTrust and Regions Bank are the most recent victims of DDoS attacks. The attacks are believed to be connected to the hacktivist group Izz ad-Din al-Qassam, which has taken credit on the public online forum Pastebin. Nowak: “Banks should be taking the opportunity to explain to their customers the difference between denial of service attacks and some sort of hacking attacks that actually puts information at risk””]
Source: https://www.cuinfosecurity.com/ddos-attacks-what-to-tell-customers-a-5227