The SEC has ordered Enigma to return investor funds from its 2017 ENG token ICO and pay a fine, due to the ICO’s status as an unregistered security
Source: https://cointelegraph.com/news/sec-nails-enigma-ico-orders-refund-registration-and-fine
SEC Nails Enigma ICO: Orders Refund, Registration and Fine
February 19, 2020
CoinTelegraph