USD Tether is a Bitfinex issued ERC-20 token which is claimed to be backed by dollar at 1:1 ratio. There are controversial opinions about this and some say it's a scam.
Do you trust USDT or believe it might be a scam?
there were rumors that usdt is not backed by dollars and they denied the audit of the company which raised questions on the projects however usdt is an old currency and has gained the trust of the traders. i personally don't that whole supply of usdt is actually backed by dollars