Bitcoin, and other cryptocurrencies, entrust their security to blockchain technology, which is one of the safest forms of making and recording transactions. As such, fraud and errors in transactions are very unlikely; however risk does exist in the method of buying or trading bitcoin (as exchanges and wallets can be hacked), and risk also exists in the fact that bitcoin does not have a guaranteed price. Like any asset, it may depreciate in value, so that poses a financial risk.