$LUNA
Do Kwon was the boss of Singapore-based Terraform Labs, which operated two cryptocurrencies - TerraUSD and Luna - both of which collapsed in 2022, triggering a wider sell-off in the crypto market.
The US says he was responsible for the failure of the two digital currencies, accusing him of "orchestrating a multi-billion dollar crypto asset securities fraud".
As part of the plea deal, prosecutors have agreed to refrain from seeking a sentence longer than 12 years. Kwon is due to be sentenced on 11 December.