How do I get USDT BEP20 on Metamask?

Could you please elaborate on the steps required to acquire USDT BEP20 tokens on Metamask? As a cryptocurrency enthusiast, I'm interested in understanding the process thoroughly. Would I need to first ensure that my Metamask wallet is configured for the Binance Smart Chain network? Once set up, could you outline the necessary actions to deposit or trade for USDT BEP20 tokens? I'm particularly curious about the security considerations involved in such a transaction, as well as any recommended best practices to follow to safeguard my digital assets. Your detailed response would be greatly appreciated.