Organisations that rely on the internet for major business functions are financially vulnerable to any loss of connectivity.
A vulnerable network can be exposed by:
- a "Denial of Service" or a "Distributed Denial of Service" jamming the communication path and shutting down business transactions
The threat can be reduced and even prevented by:
- building and maintaining a secure network that's protected by one or more firewalls
- PCI DSS Standard requirements 1,10 and 11.

