How does blockchain technology ensure the security and immutability of data in decentralized systems?

Q: Which agency oversees US cybersecurity policy?

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Q: Who oversees information security? Why?

A: According to the information given:-We have to define oversees information security.

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Fundamentals of blockchaining

In a business network, the tracking assets and the process of recording transactions are facilitated by the shared immutable ledger called a blockchain. Assets are of two types they are tangible and intangible. The tangible assets are land, house, cash, etc. The intangible assets are copyrights, branding, properties patterns, intellectual property, etc. On a blockchain network, anything that has a value can be tracked and it can be traded.