The basic difference is the accessibility of data which is unmatched in the case of self-reliant cloud solution which distributes the data into unlimited end points anywhere in the world. The devices do not have to be located close to each other and data are stored outside and are secure and safe on various end points which make the situation harder for possible attackers as they do not have one entry point, on the other hand cloud infrastructure is not centralized and cannot be controlled by you directly.
In case that data is in one place (on-premise server solution), the possibility of control and securing your data is much easier. The same goes with analysing and monitoring your network. The security of cloud may be cheaper than on premise as you will not have to invest into your own hardware and accessories.
It is impossible to say which technology is better or more advanced. We may however state some points and describe the main differences between these two solutions as it can help you decide where you should safe your important data.
The security and overlooking of your infrastructure are divided between you and the provider, which is saving your IT capacity and expenses.
The protection is usually highly automatized thanks to secure environment and API. The only thing you must keep in mind is to follow present advices and basic cybernetic hygiene.
The data can be accessed from anywhere and anytime. With well-made and secure cloud solution it is not important if you access your data from office, home or a publicly available wi-fi.
The protection of the cloud is at the hands of the provider you can invest into different parts of your IT structure.
With cloud solutions you place your security and data into external company hands which may be an issue for some companies on the other hand you place them into the hands of professionals in the field of online security.
Many cloud solutions come with present settings for the cloud protection which are often optimal and work the best. This may pose an issue for you so it is especially important to discuss these before applying for such a solution as some providers may not be willing to change their system for you.
If you choose to store your data locally its only up to you how well, you protect your data. You also must count in the necessity of nonstop monitoring and maintenance.
The governing and control over your data is completely in your hands. This also brings numerous responsibilities and you and your IT team are responsible for anything which may happen to them and your network.
The proper security of on-premise solutions includes cybernetic as well as physical security. You may invest into proper cybernetic security, but you also must keep an eye on the actual data centre which must be protected from possible uninvited visitors.
If you maintain your data yourself, you get the ability to configure anything exactly to what you want and need. This however needs higher experience in networking.
Nowadays you cannot rely on only one layer of defence. The security itself cannot be only centralized and must be layered. Layers should be divided, and each should contain their own security tools. Such an investment can be high.
On-premise has a big disadvantage as the data are most secure inside your own network if you try to access the data from anywhere else it may pose much higher risk than in the case of cloud solution.