CFDs are complex financial instruments and carry a high level of risk due to leverage. A significant proportion of retail investors incur losses when trading leveraged products such as CFDs. You should carefully consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your capital.
If you want to know what “binary” means in finance, it refers to a type of derivative with only two possible outcomes: you either win a fixed amount or lose your entire investment. There is no middle ground. That’s why they’re called binary options: the outcome is yes or no.