Is TUSD safer than USDT?

I've been hearing a lot about TUSD and USDT, and I'm trying to decide which one is safer for my investments. Could you please explain to me the key differences between these two cryptocurrencies? Specifically, I'm interested in knowing about their respective backing mechanisms, the reputation of the issuers, and any regulatory oversight they might be subject to. Is there a significant difference in terms of security and stability? Which one do you think offers a higher level of protection for investors like me?