Bitconnect (bitconnect.co) was a crypto ponzi scheme with unknown founders who came under heat by US gov in January 2018. Famous Youtubers & Twitter personalities are getting charged for coaxing users into this pyramid / ponzi, users like Craig Grant, Crypto Nick, Trevon James.
From their website back in 2017:
What is bitconnect? A self regulated Financial system BitConnect is an open source all in one bitcoin and crypto community platform designed to provide multiple investment opportunities with cryptocurrency education where it is entirely possible to find the independence we all desire, in a community of like-minded, freedom loving individuals who, like you, are seeking the possibility of income stability in a very unstable world.
In January 2018 Texas regulators ordered a cease & desist against Bitconnect. Article here.
Trade Satoshi, the last remaining crypto exchange with Bitconnect trading pairs, has announced the delisting of BCC and all it’s parings on Sept 10, 2018. (source)