The Evolution of Cryptocurrencies – CBDC’s

Please note this blog post was published over 12 months ago and so may not include the most up-to-date information, for example where regulation around investing has changed.

The Evolution of Cryptocurrencies – CBDC’s

Bitcoin and cryptocurrencies continue making headlines. But, behind the headlines major Central Banks are considering the role digital currencies may have in what could be a transformational shift.

Today, over 10,000 cryptocurrencies exist in the marketplace, with hundreds more joining every month. Most have been subject to staggering levels of volatility – the cost of a single Bitcoin recently skyrocketing over $60,000 in March and subsequently plummeting to below $35,000 in June. This type of volatile reaction is what happens in an unregulated environment where a single tweet can unsettle the entire crypto market.

Chart 1: Bitcoin/USD Price – Year to Date

Source: Bloomberg, June 2021

For simple day to day use something less volatile and more regulated is required to avoid roller coaster influences which render cryptocurrencies difficult to integrate into mainstream monetary systems.
As we explain below a great deal of thought has been taking place into how Central Bank Digital Currencies (CBDC’s) might be issued to complement existing systems.

How Might Digital Currencies Evolve?

In June, El Salvador’s congress voted to approve Bitcoin as legal tender. Citing the benefits of the low transaction costs, with 20% of the country’s GDP comprised of remittances and money sent home from citizens working abroad.  However, last week The World Bank rejected a request from El Salvador for help implementing this rather unusual policy shift. They expressed concerns with “environmental and transparency shortcomings”. Demonstrating the significant barriers at the earliest of stages.

However, in a more mainstream development, The Bank of England announced the creation of a taskforce to explore the potential of a UK Central Bank Digital Currency. Nicknamed “Britcoin” this digital currency would essentially complement our current monetary system, allowing the British public the benefits of owning a digital currency backed by the stability of the pound.

CBDC Opportunities:

Source: Bank of England

All central banks considering digital currencies will have some ability to control the market value of their CBDC’s, by keeping them in line with their home currencies. This is a marked shift from the volatile cryptos, but there are some inherent ethical and practical challenges associated with the implementation of CBDC’s:

  • Decentralisation of data requires vast amounts of small messages to facilitate transactions and networks must be robust and able to cope.
  • Privacy of data is a key concern. Processing of transactions may require one party to share information such as a password or private key with a third party. Private keys are a form of unique encrypted password used in conjunction with a specific algorithm, these are extremely secure and generally specific to cryptocurrency transactions.
  • The centralised systems operating digital currencies will be a big target for cyber-attackers looking for vulnerabilities to access individual’s data or their funds.

What Would a CBDC Mean for You?

  • A CBDC could open avenues for more efficient payment services. Digital transactions are complete in seconds, whereas many debit/credit card transactions can take days to clear.
  • More options for payment terminals. For example, QR code scanners on a mobile phone camera could carry out transactions, bypassing the banks and avoiding transaction charges for the merchants.
  • If interest rate policy changes take place, individuals holding digital assets could see the changes reflected far quicker than waiting for retail banks to follow suit.
  • There may be some opportunities to facilitate less costly foreign exchange transactions when holidaying abroad.


It is impossible for central banks to ignore the opportunities presented with digital currencies. The Bank of England, European Central Bank, Peoples Bank of China and the US Federal Reserve Bank are all currently researching technologies to integrate digital currencies across their monetary systems.

The risks presented are not being taken lightly by central banks. Issues associated with privacy, hacking and crime will have to be resolved satisfactorily or the idea will be doomed to failure.

Private companies already have wide access to personal transaction data which can be used to influence behaviour. This will be extended big time to governments unless digital currencies are demonstrated to be kept separate from state snooping. This is likely to be more of an issue for Western governments to confront than for centralised states like China.

Global Markets