Where can I buy DPR tokens?

Hello there, I'm curious about the DPR tokens you've mentioned. I'm wondering, where exactly can I purchase these DPR tokens? Are there any specific exchanges or platforms that offer them for trading? Also, what are the steps involved in acquiring these tokens, and are there any prerequisites I need to fulfill before making a purchase? Additionally, could you provide some insights on the security measures in place for these transactions to ensure a SAFE and secure buying experience?