What happened with Poloniex Exchange?

11/09 Poloniex exchange was hacked. Justin Sun announced compensation for the victims at his own expense. At the same time, he tries to negotiate with the hacker to return the funds for a 5 percent reward.

At the moment, the hacker's wallet contains funds worth $124 million.
11/09 Poloniex exchange was hacked. Justin Sun announced compensation for the victims at his own expense. At the same time, he tries to negotiate with the hacker to return the funds for a 5 percent reward.

At the moment, the hacker's wallet contains funds worth $114 million.
Poloniex, a cryptocurrency exchange founded in 2013, was hacked, with an estimated loss of around $114 million. 
The hack was detected by blockchain security firms PeckShield and Cyvers, and Poloniex announced that its wallet had been disabled for maintenance shortly after

The exchange's investor, Justin Sun, confirmed the hack and pledged to reimburse the affected funds. 

Poloniex maintains a healthy financial position and is investigating the incident. Various wallets across multiple blockchains appear to have been targeted, with an Ethereum wallet, now tagged as "Poloniex hacker," sending a total of $114 million worth of tokens from Poloniex in 357 transactions. 

A wallet on the Tron blockchain also sent around $42 million to various wallets. 
The exchange is offering a 5% white hat bounty to the hacker with a deadline of seven days before engaging with law enforcement. 

Justin Sun is a Chinese-born Grenadian cryptocurrency entrepreneur and business executive. He is best known as the founder of TRON, a blockchain decentralized autonomous organization (DAO) ecosystem. Sun acquired the crypto exchange Poloniex in 2019. 
Some key points about Justin Sun include:

He was born in China and later became a Grenadian citizen. Sun is a graduate of Pingry-Bloomsburg, where he studied economics. 
He has been involved in various investments and acquisitions in the cryptocurrency space. 

Sun has faced some controversies, such as allegedly demanding personal ownership of misplaced Poloniex customer funds. He has also been involved in other ventures, such as investing in space exploration with Blue Origin.