Hot Deribit wallet hack and loss is estimated at $28 million... What happened?

Panama-based crypto derivatives platform Deribit has been hit by a hacking attack valued at around $28 million, in which the hot Deribit wallet has been hacked. The platform claims that its clients' funds are still safe despite the recent attack.
"The hot Deribit wallet has been hacked, but customer funds are safe and the loss is covered by the company's reserves," the company said in a tweet.

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The company confirmed its customers that the attach of the Deribit wallet had only hot wallet and any cold storage titles were not affected by hacking, and that the company's conduct was 99% of the money funds in cold storage with a view to reducing the impact of this events.

The company said: “The Deribit wallet hack has been identified in our hot wallets and theft of cryptos from BTC, ETH and USDC. We are also running constant security checks and we have to stop withdrawals"

Deribit also stated that his insurance fund will not be affected by the attack, and the loss will be paid from the company's own reserves. According to Derbit, the platform is "in a healthy financial position and ongoing operations will not be affected."

The platform also said, “We have raised the minimum number of confirmations for the time being which is causing a delay in depositing funds. Until we open the wallets again, we ask you not to send new deposits.”