What are the dangers of USDT?

Could you please elaborate on the potential risks associated with USDT? I'm particularly interested in understanding the financial implications it might have for investors, as well as any technological vulnerabilities that might compromise its security. Additionally, are there any regulatory concerns or legal uncertainties surrounding the use of USDT that investors should be aware of? I'd appreciate a comprehensive overview of these dangers to help me make informed decisions about its utilization in my portfolio.