Which is the safest app for trading?

Could you please provide some insight on the question of which app is considered the safest for cryptocurrency trading? With so many options available in the market, it's essential to choose a platform that prioritizes security, not just ease of use or the number of available coins. Are there any specific features or certifications that one should look for when evaluating the safety of a trading app? Additionally, what are some of the potential risks associated with using less secure platforms, and how can traders protect themselves from these risks?