Just read the story of how they allegedly caught the hackers...
https://www.justice.gov/opa/pr/bitfinex-hacker-and-wife-plead-guilty-money-laundering-conspiracy-involving-billions
And these are the so called hackers...

https://www.newsbtc.com/news/bitcoin/meet-the-two-alleged-bitfinex-hackers-ilya-lichtenstein-and-heather-morgan/
The whole story is so hilarious and scream as being a scam, well covered with the help of the gov agencies.
They want to perpetuate the use of Tether...