Though it has advantages but i think there is security risk always

Dear David Njeri,

Any currency has a permanent lasting though variable value. Bitcoins' key value is in solving a money owner's privacy problem, as the ledger doesn't belong to any private or government property any more, but electronically and geographically disseminated world wide, and cannot be adjudicated or legislated locally. Businesses typically sell either products or services, which do not have a generally recognized permanent lasting values. Moreover, products/services cannot be anonymized and kept locally and world wide non-ajudicated and/or non-legislated. Hence, business products/services distributions cannot function similar to bitcoins due to its nature in a free market economy.

Decentralised servers are solutions

Simple answer is "yes"

Let's look at "how?". Suppose that you implement a block chain network among the target stake holders (i.e. some business entities), the requirement for centralized control automatically becomes obsolete with the fundamental nature of distribution in block chain. Each and every activity as designed to be handled by the block chain are distributed and visible/accessible as per the permissions agreed and set among the participants. Hence, the need of an intermediary to monitor or control the activities becomes obsolete. Further, the smart contracts can be implemented to automate actions required as agreed by the participants.

However, implementation of such environment depends on the industry you are looking at, existing legislations and regulations which need to be taken care of or amended accordingly.

Yes. With the introduction of Smart Contract blockchains such as Ethereum, Solana, etc. It makes mutual agreements more decentralized and more open without the presence of any intermediary only the code running it the blockchains eg. You can have bank services without having the middle man bank as usual with a KYC.