From the keyword 'USD Tether' in Google, they confirm 1:1 trade to real USD. It sees itself as real USD.
"Tether converts cash into digital currency, to anchor or tether the value to the price of national currencies like the ... So 1 USD₮ is always equivalent to 1 USD."

Thank you all of your replies. Now I think it's safer/better to trade ALT/BTC than BTC/USDT.
Have a nice day.

Hi all;

I'm a new trader to the crypto market. During my research, I notice one weird ‘currency token’ which can be call ‘USD’ tether or USDT (tether.to) in many exchanges.
Then I have some questions below, I'll really appreciate for your explanations:

• Who (organization/person) managing this kind of tether tokens?
• Does it have open-sourced?
• Can they be ‘printed’ massively for (margin) trading (which made btc high pump/dump) recently? I found this address generating so much tokens by days: http://omnichest.info/lookupadd.aspx?address=3MbYQMMmSkC3AgWkj9FMo5LsPTW1zBTwXL
  
  
• If it’s considered to be exchanged 1:1 to USD (according to coinmarketcap), will it can be in danger of being seized by FBI or government…?

Thanks for your reading and sharing…
Have a nice day.