“A day of disruptions in Wells Fargo & Co.’s electronic banking operations apparently was the latest in a series of cyber attacks that disrupted online operations at Bank of America Corp., Citigroup Inc. and JPMorgan Chase & Co.
A computer security expert blamed massive denial of service attacks, in which perpetrators overwhelm computer servers with communications demands, causing networks to seize up or slow down.”
Source:Wells Fargo is latest victim in cyber attack spree – latimes.com