Why cloud still not there when virtualization have been done

Hello

Most of companies have completed or nearly completed to virtualize their servers. They also have done some automation and have made some sort of reporting with or without buying some tools.

So why don't they go to the cloud?
It is a question of education and security.

Let me explain, when companies have heard about first about cloud they have heard two speeches, it s cheaper and it s dangerous when talking about security.
So first let me tell you cloud is not always cheaper is depends of your usage. Second, Cloud is dangerous because you haven't secure your virtualization solution. When you have moved to virtualzation, most of you have downgraded their security, espacially network security.
Now we have two kinds of network, physical and virtual. Your Network security is based on a physical network in most of the company and not on virtual, but now you have more connected more items on a virtual switch than a physical one, so you began to see the problem...
Your virtual network is more dynamic, a static physical network where security rules are based on it. So network security rules need to become dynamic in accordance to virtual network. When this will be done you will be a able to make some network without physical dependancies and so you ll be able to move any charge to the cloud.

The network initiative like VMware NSX, Openstack... are necessary to virtualize network layer and make is less dependant from their physical location.

When this points are done you will be able to move to cloud without technological hurting.
But before moving data to the external you will need to know how much does it cost outside and compare it to an internal service.

Thank