What is bitcoin exchange & how does it work in Germany?
Could you elaborate on the concept of a bitcoin exchange and its operational framework in Germany? Specifically, I'm interested in understanding how these exchanges facilitate the buying and selling of Bitcoins, the regulatory landscape surrounding them, and any unique aspects or challenges that exist in the German market. Additionally, I'd like to know about the popular Bitcoin exchanges in Germany, their security measures, and any advice you may have for individuals looking to engage in Bitcoin trading in the country.