American Express confirms it was hit this week by a distributed-denial-of-service attack. The hacktivist group that has targeted banks in recent months claims credit for this latest high-profile attack.
DDoS attacks, mobile malware and tax fraud are growing concerns for U.S. banks. But what's the top threat these institutions and their customers face in 2013? Nancy Guglielmo of BITS offers her insights.
Army Gen. Keith Alexander, who heads the U.S. military's Cyber Command, says it isn't the role of the government to defend American banks against distributed-denial-of-service attacks that have targeted them for the past several months.
As distributed-denial-of-service attacks on banks continue, a U.S. electric utility also reportedly is a DDoS victim. Is this a sign that hacktivists are broadening their targets? Experts offer analysis.