Blockchain from a security perspective

The 20th century has given us all the opportunity to live different lives than in the past. In particular, this is due to the technological advances and changes that have occurred in the last two decades that are unique and bear no similarities to the past. We quickly got used to the reality that mobile phones were first brought to us, then the internet and the computer and today we cannot imagine a day without them, because that is how we communicate with each other, we complete our work. or read the news.

Lately, the innovations surprised us even more and ushered in a new era of quick and easy execution of the required procedure. One of the main and revolutionary inventions of the last decade is considered to be blockchain, which is a very different system from anything created so far. However, the advantages that it has brought in our lives are very efficient and it helps us to run the services without spending energy and to do it faster.

What is the blockchain?

While blockchain appears to be complex, and it can be, its core idea is quite easy. A database, or blockchain, is a form of digital ledger. To understand blockchain, it is essential to first understand what a ledger is. A database is a list of data stored on a computing device in electronic format. Database information, or records, is usually organized in a table format to simplify searching and filtering for relevant information.

Large databases do this by storing information on servers made up of powerful computers. In order to provide the computing resources and storage space necessary for multiple people to access the database at the same time, these servers are often built with hundreds or thousands of machines. Although anyone can access a spreadsheet or directory, it is often owned by a company and maintained by a designated person who has direct control of how it works and the data it contains.

Blockchain and security

Blockchain technology creates a data structure with built-in encryption features. It is based on concepts of encryption, decentralization and consensus, which guarantee trust in transactions. Data in most blockchains or distributed ledger technology (DLT) is organized in blocks, with each block containing one or more transactions. Each new block in a crypto chain is linked to all previous blocks in such a way that manipulation is almost impossible. A consensus process validates and agrees on all transactions within the chains, ensuring that each transaction is accurate and correct.

Through the interaction of participants in a global network, blockchain technology facilitates decentralization. There is no single point of failure because only one person can modify the transaction log. However, there are some significant security differences between blockchain and other systems.

The difference between public and private blockchain values

Who can participate in blockchain networks and who has access to data can vary. It is generally divided into public or private networks, indicating who is allowed to join, or not allowed, indicating how users gain access to the network.

Anyone can access a public blockchain network and users are usually anonymous. A distributed blockchain validates transactions and achieves consensus using machines connected to the Internet. Bitcoin is the best known example of a decentralized blockchain and uses “bitcoin mining” to achieve consensus. Due to this service and the profits that this system could make from people, its popularity increased dramatically and especially during the pandemic. That is when and why the demand in the crypto market increased dramatically and many beginners started to get involved in it despite the lack of knowledge due to the hope of generating financial gains in this period of unemployment. Many developed countries were open to new changes and gave companies the opportunity to operate in the market and help people with the right help. For example, the demand for Forex trading brokers in the Canadian market increased dramatically. Computers on the bitcoin network, or “miners,” attempt to solve a difficult cryptographic problem in order to generate proof-of-work and thus verify the transaction. In this type of network, there are few identification and access restrictions other than shared keys.

Private blockchains rely on identities to verify membership and access rights, and typically allow only known companies to enter. Organizations come together to create a members-only “business network”. In a permitted network, a private blockchain reaches consensus through a mechanism known as “selective endorsement,” through which transactions are validated by known users.

Blockchain Security Tips

When creating a private blockchain, make sure it runs on a stable and reliable infrastructure. Through their weaknesses, poor underlying technology choices for business purposes and procedures will contribute to data protection risks.

Consider the threats to your business and government. Financial consequences, reputational threats, and regulatory risks are also examples of business risks. The decentralized design of blockchain solutions creates governance risks, requiring tight controls over decision requirements, governance rules, and identity and access management. Understanding and managing blockchain network threats is critical to blockchain protection. A blockchain security model is the blueprint for applying security to these controls. Create a blockchain security model to ensure that all necessary security measures are in place to keep blockchain solutions secure.

Administrators must create a risk model that addresses market threats, policies, infrastructure, and workflow to incorporate a blockchain solution security model. They would then assess the risks associated with the blockchain approach and develop a hazard model. Then, based on the three categories below, administrators should identify security controls that will reduce risks and threats:

Implement blockchain-specific security measures. Use standard protective measures. Make sure market regulations are in place with blockchain


Finally, to summarize, as a business you need to recognize that blockchain is not the answer to all your problems. You can jumpstart basic procedures, but it comes at a high price at first. There are still some threats to consider. We cover a wide range of risks in this report, including protection, legal and growth. In addition, this offers the ability for financial institutions to reduce costs, reduce contact or mediation periods, and increase the accountability of both stakeholders. Since many operations are peer-to-peer, this transformative paradigm has the potential to change the way financial institutions do business.

Although the advantages are obvious, there are a host of threats that this nascent technology can bring. As blockchain technology matures, our understanding of the technology and the risks that come with it may change. As a result, it is important for all organizations to monitor the progress of this technology and how it is applied to multiple use cases.

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