Smart Solutions: Secure Applications of Blockchain

The buzz around blockchain and cryptocurrencies has been around for a while now. Apart from being primarily employed in cryptocurrency trading, the technology is now finding pivotal applications in various fields, including healthcare, supply chain management, and even media and entertainment. 


Created to enable a way to safeguard digital records with tamper-proof technology, blockchain now acts as a solution for various problems concerning security, including financial and other services. 

Securing financial transactions


In blockchain, every transaction is recorded and verified by a decentralized network, which eliminates the need for central authorities like banks and the government. The records, data, and timestamps are stored in blocks and interconnected by hashes that act as chains, which link the blocks on the system.


These blocks of data are encrypted by complex cryptographic algorithms, thereby ensuring security, stamping out fraud, and establishing transparency. 


With blockchain technology, every user can see the data, history, time stamp, and parties involved, which results in high levels of transparency, accountability, and traceability, making it improbable for fraudulent transactions. 


Every new piece of data that is added to the blockchain is verified by miners or validation nodes (the consensus concept).


The concepts of distributed ledger technology, immutability, and consensus make blockchain technology secure and safe for financial transactions. 


Enhancing supply chain security


The current supply chain management system remains a centralized system, controlled by headquarters and other stakeholders receiving data from them. 


The pivotal worries in the system are lack of transparency, weak security, fraud, less stakeholder involvement, limited traceability, product counterfeiting, and delays. 

This is where the role of blockchain in the SCM lies. One famous example of the use of blockchain is when Walmart employed blockchain technology to solve the high goods return rate due to damage by storing data at each instance of supply and tracing back to the problematic area. 


Blockchain secures transactions in SCM, paving the way for secure financial transactions. Furthermore, consumers’ private information is at stake with a centralized mechanism, which can be efficiently sorted out by the blockchain’s encrypted mechanism. 


Also, blockchain improves stakeholder trust by sharing information that is public and immutable, along with increased efficiency, improved response times, and improved supply chain visibility. 

Protecting personal data

Supply chains are essential for safeguarding personal information, especially in sectors like technology, healthcare, and finance, where data security and privacy are critical concerns. 


Supply chain contracts often include clauses related to data protection and security. These agreements outline each party's responsibilities for safeguarding personal data, including data processing, storage, and transmission practices. 


Role-based access control (RBAC) and multi-factor authentication (MFA) are common methods used to authenticate users and restrict access to authorized personnel only, thereby ensuring the security of the users. 


Regular audits and assessments of supply chain partners help identify potential vulnerabilities and ensure compliance with data protection regulations. 


Protecting personal information comes to reality with so much efficiency and use in the healthcare system, where there are often data breaches that pose critical threats to every person’s privacy. 


By having security through BC, the data is safe and is shared between only the concerned individual healthcare providers, making it secure and safe. 


Future Trends in Blockchain Security


According to a forecast by research firm Gartner, by 2026, the business value added by blockchain will increase to over $360 billion. Then, by 2030, that will increase to more than $3.1 trillion.


  1. Cybersecurity: Data Tampering is a critical concern for a lot of businesses today, making cybersecurity a promising field that can be enhanced by blockchain technology. As a result, tampering can be prevented, data can be secured, and users can verify the authenticity of the files.

  1. Government: The government can use blockchain technology to improve the entire efficiency of the system by going paper-free. Furthermore, voting in elections can be conducted through blockchain technology, which makes the process easier, faster, and more secure. The immutability feature of blockchain can be capitalized on to prevent fraud and forgery. Voter identities can be protected through remote voting. 

  1. Finance: El Salvador accepted Bitcoin as a legal tender in 2021, paving the way for more developing countries to accept Bitcoin in the mainstream financial markets. This is due to rising inflation and the cost of money transfers. 

  1. Healthcare: Blockchain is widely used in healthcare for storing and managing patient data, controlling drug supply, automating medical examinations, and processing transactions involved in treatments. Rising concerns about the production and distribution of counterfeit drugs have been solved by verifying the authenticity of vaccine shipments and distribution. 


  1. Marketing: Blockchain technology will be beneficial in the field due to its ability to track and evaluate the success of marketing initiatives. It reduces the likelihood of advertising fraud. Blockchain technology aids in the removal of virtual accounts, automatic filtering, and verification of advertising engagement. It can also assist in gathering information on the psychology and behavior of customers.


In this digital age where paper is an old tale, we ought to store, use, and share data through online services, including backing up our memories as photos or, be it, financial transactions. With great innovation comes greater comfort, but also greater concerns. 

Blockchain in healthcare is a blooming field, with millions of users using the technology to store and transfer information without worrying about security breaches. The future of BC is on the horizon and will be employed strategically to solve modern-day problems. 






  1. How can blockchain be used for security?


The primary goal of blockchain is to provide secure transactions, which is supported by the concepts of immutability, transparency, and complex cryptographic algorithms. Hence, blockchain is the most secure medium for the transaction of data. 

  1. Which application is used for the blockchain?


Although primarily used for cryptocurrency, blockchain is now employed in various fields, including healthcare, supply chain, media and entertainment, banking, and many more, according to their uses.