This article explains about the cyber hack ‘done’ by the North Korean hackers that paralyzed a leading bank in the South Korea.
The attack caused banking operations at Nonghyup in the South Korea to be halted, leaving customers unable to access or transfer their cash for three days. It also caused the records of some credit card customers to be deleted.
The principal used in order to break into Nonghyups system was the same as one used in March for a distributed denial of service also known as the DDoS attack.
While considering security related to situations similar to this, I believe that banking customers are the victims suffering. The fact that customers were not able to access their cash for three days makes the situation even worse. Imagine a longer period.
Read more about this article on the following link below.