DForcel is believed to have suffered an attack targeting the same vulnerability that allowed $300,000 in tokenized BTC to be stolen from Uniswap
Source: https://cointelegraph.com/news/dforce-loses-9995-of-funds-in-latest-test-of-defi-resilience
DForce Loses 99.95% of Funds in Latest Test of DeFi’ Resilience
April 19, 2020
CoinTelegraph