How do I get Gemini USD?

Hello, I'm curious about how one can acquire Gemini USD. Could you please elaborate on the process? Is it something that can be directly purchased or do I need to go through a specific exchange? Are there any requirements I need to meet in order to acquire it? I'm also interested in knowing if there are any fees associated with the process. Lastly, how do I ensure the security of my Gemini USD once I have acquired it? Thank you for your time.