Cyber Security: Is Blockchain the Answer?

Cyber security has long been a serious matter for financial institutions and corporates alike, but fintech and the digital era make cyber security more of an issue. Delivery of products and services through digital channels means that more systems are available to scrutiny by malefactors. The continuing adoption of fintech APIs (by which institutions provide their clients with third party services) and cloud computing may introduce further vulnerabilities. Meanwhile, the growth of the digital economy is also creating a large population of highly trained technologists — potentially creating greater numbers of cyber attackers and cyber thieves.

Cyber threats affect all industries, but financial institutions are particularly at risk, because of the direct financial gain possible from a cyber intrusion. An important question is whether the existing cyber security guidelines issued by various industry organizations will continue to be adequate in the age of fintech and digital financial services.

Fortunately, the evolution of fintech also entails the development of new technologies aimed at creating the next generation of cyber security. A number of startups are beginning to develop applications using semantic analysis and machine learning to tackle KYC, AML and fraud issues. Significantly, IBM Watson and eight universities recently unveiled an initiative aimed at applying artificial intelligence to thwart cyber attacks.

The traditional cyber security paradigm is one of “defense,” and unfortunately defenses can always be breached. Artificial intelligence, as advanced as it is, still represents the traditional cyber security paradigm of “defense,” putting up physical and virtual walls and fortifications to protect against or react to attacks, breaches, and fraud or other financial crime.

What if there were a technology that broke through this “defense” paradigm and instead made cyber security an integral aspect of financial technology?

This is precisely the approach taken to cyber security by blockchain technology.

Bank consortia and startups alike are engaged in efforts to develop distributed ledgers for transfer of value (payments) and for capital markets trading (where the execution of complex financial transactions is done through blockchain-based smart contracts). Accordingly, distributed ledgers and smart contracts are likely to one day have a place in treasury operations, for both payments and trading.

Blockchain is gaining attention primarily because its consensus-based, distributed structure may create new business models within financial services. In addition, though, blockchain technology has at its core encryption technologies that not only keep it secure, but are actually the mechanism by which transactions are completed and recorded. In the case of Bitcoin, blockchain has demonstrated that its encryption technologies are quite secure. The further development of blockchain will necessarily entail significant enhancements in next-generation encryption technologies such as multi-party computation and homomorphic encryption, which are already under development. In other words, blockchain is likely to not only play a role in altering the way payments and capital markets transactions are undertaken, but also in the way next-generation financial systems are secured.

Neil Katkov About Neil Katkov

Neil Katkov, PhD, is the Senior Vice President of Celent's Global Asian Financial Services Group, based in the firm's Tokyo office. His areas of expertise include the Asian financial services industry, financial services distribution channels, and compliance issues including anti-money laundering and business continuity planning.

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