Approximately 32,000 financial and media industry computers were infected by an attack in South Korea last Wednesday. Originally, it was thought that the IP address of origin was Chinese. But as per a BBC report, the IP address was configured on a server at the Nonghyup Bank, which was one of the banks hit in the attack. In other words, the attack seems to have come from within. Another thing to consider is this: the attacks were very successful at destroying data and bringing down systems.