The Financial Conduct Authority (FCA) is a financial regulatory body in the United Kingdom, but operates independently of the UK Government and is financed by charging fees to members of the financial services industry. The FCA regulates financial firms providing services to consumers and maintains the integrity of the financial markets in the United Kingdom. Wikipedia

CFD stands for Contract for Difference. It is a popular derivative product that allows traders to speculate on the price movements of various financial instruments without owning the underlying asset. CFDs provide an opportunity to profit from both rising and falling markets.  CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. Between 74% and 89% of retail investor accounts lose money when trading CFDs.