Cryptocurrency is a form of digital cash, it is not physical, it is just a number on a screen. This form of computer cash can be bought by downloading broker apps, such as Blockchain and Coinbase. These brokers allow users to buy digital cash in exchange for pounds using credit or debit cards.
Users can also sell their digital cash using the same service in exchange for pounds. It is considered a complex and high risk investment practice and likely not to be suitable for small investors.
Cryptocurrency has significantly dropped in value since the 2018 cryptocurrency crash. There are various theories around why the value has crashed, including regulators investigating whether the currency has been illegally propped up.
The value of cryptocurrency has been extremely volatile over many years and its future is uncertain. Small investors are warned that it is not suitable for them as an investment product.