Blockchain is secured under certain circumstances and cannot get manipulated. But it is not every Blockchain that is out there that is secured. Essentially, the security of an open Blockchain gets determined by the significant number of users and the value of an actual cryptographic currency.

Blockchain gets safeguarded via different mechanisms comprising advanced cryptographic procedures and mathematical models of behavior and decision-making. Blockchain technology is the fundamental structure of almost every cryptocurrency system. It has been preventing this type of digital currency from being devastated or replicated. 

Blockchain technology gets generated in several settings. Data stability and security are highly valued, such as recording and tracking donations, medical databases, and supply chain management. 

Nevertheless, Blockchain security can never be compared to an ordinary subject. As a result, it is essential to recognize the simple models and mechanisms that give strong security to these ground-breaking systems. We will be discussing this in this article.

The role of cryptography in Blockchain security

Blockchain depends solely on cryptography to accomplish its data security. In this type of situation, this cryptographic hashing functions are of vital significance. Hashing is a process whereby an algorithm, i.e. the hash functions, receives an input of data of any size and returns an input .i.e. the hash comprises a predictable and permanent size.

Not minding the input size, the output will always give out the same length. But if the input should vary, the result will change completely. On the other hand, if the information does not alter, the next hash will always remain the same, irrespective of how many times you operate the hash function.

In Blockchain, these output values, also called hashes, are exclusive identifiers for data blocks. The hash of every block gets created in association with the former block's hash, which forms a chain of connected blocks. The block hash depends on the data enclosed inside that block. It means that any modification made to the data would automatically necessitate a change to the block hash.

So, the hash of every block is created, determining the data entailed within that block and the former block's hash. These hash identifiers play a significant role in guaranteeing Blockchain security and Immutability.


Another concept that helps sustain the security of Blockchain networks is a reasonably new concept called Cryptoeconomics. 

It gets connected to a field of study known as game theory. It further represents decision-making by regular players in conditions with predefined rules and recompenses. Whereas traditional game theory can get applied generally to various cases, Cryptoeconomics especially models and defines the behavior of nodes on disseminated Blockchain systems.

In a simple sentence, Cryptoeconomics is the study of the economics within Blockchain procedures and the possible results their proposal may present depending on its user's performance. Security via Cryptoeconomics depends on how Blockchain systems make bigger enticements available for nodes to act just rather than embrace malicious or defective behaviors. Furthermore, the Proof of Work consensus algorithm used in Bitcoin mining proposes a better example of this enticement structure.

When Satoshi Nakamoto generated the context for Bitcoin mining, it developed to be expensive and resource-intensive. Due to its complications and computational difficulties, POW mining comprises a significant investment of funds and time, not minding where and who the mining node is. So, such a structure offers a strong discouragement for malicious actions and a significant appeal for mining activities justly. 

Deceitful or incompetent nodes will be disqualified immediately from the Blockchain network. At the same time, the truthful and competent miners have the prospective of receiving substantial block rewards.

The concepts of Immutability and consensus

Even though many features try to play into the security linked with Blockchain, two of the most significant concepts are consensus and Immutability. 

Consensus refers to the ability of nodes in a distributed Blockchain network to compromise the true nature of the network and the legality of transactions. The process of accomplishing consensus is reliant on the supposed Consensus algorithms.

On the other hand, Immutability can be called the Blockchain's ability to avoid changing transactions that have already been confirmed.

Joined together, consensus and Immutability offers the context for data security in Blockchain networks. Consensus algorithms ensure that system rules get tracked and that all users involved violate the network's present nature. On the other hand, Immutability ensures that the data and transaction records are credible upon confirmation of each new data block to be usable.

Final thoughts

Having read through the above article, you should now understand what makes Blockchain secured.

Using the combination of game theory and cryptography, Blockchain can reach high levels of security as dispersed systems. As with almost all scenarios, still, it is severe that these two fields of understanding are applied appropriately. A careful balance between decentralization and security is essential for building a trustworthy and competent crypto coins network.

As individuals and industries are using Blockchain and it keeps changing, their security systems will also change to meet the needs of diverse requests. The private Blockchain now gets designed for business operations. For instance, it depends solely on security via access control on the game theory mechanisms (or say Cryptoeconomics) that are essential to the safety of most of the public Blockchain. 

Do you find this helpful? Double-tap!