Network is base of digital banking domain. The base should always be strong and updated. In Recent days Ransomeware attack was a very big problem. Due to confidential data, banking sector was under pressure of its major affect. Being a part of networking & security, it is our responsibility to face the challenges and search for the door to overcome from the massive situations. The small loophole in the network can create a big disaster.
While working under the guidelines of PCI DSS “The network diagram is supposed to be simple to flow, but difficult to attack, even the small changes can play a very important role in the network. The date & time on the system is always neglected but it stores the history of incidence so it should be accurate according to the time Zone (Can use NTP server). PCI DSS guidelines not only helped to make the Network strong but it also indicates how to overcome the Incidence.
The virus like ransomware has mass effect on the system of organization because the construction of the network or the implementation of security software is in same Prototype. Also, Limitation in innovative Idea like local network is built on fixed IP range or some common range of IPs.
Virus/Attacks should be taken on positive note as this give you the idea to develop the security policy and unique network strategy. Appreciate the talent of your colleague as hacker, which will help you in gap analysis and know mind set of Hacker and the target points. Small changes make big difference.