Is USDT safe and stable?

I've been hearing a lot about USDT recently, and it seems to be gaining popularity in the cryptocurrency world. However, with the volatile nature of digital currencies, I can't help but wonder if USDT is really as safe and stable as it's touted to be. I've seen some reports about its peg to the US dollar, but is that really enough to guarantee its stability? And what about the security measures? Are they robust enough to protect investors' funds? Could you please elaborate on these points and give me a clearer picture of the safety and stability of USDT?