Bitconnect (also spelled BitConnect and KimConnect; stylized bitconnect, ticker code BCC) was an open-source cryptocurrency in 2016–2018 that was connected with a high-yield investment program, a type of Ponzi scheme. After the platform administrators closed the earning platform on January 16, 2018, and refunded the users' investments in BCC following a 92% coin value crash, confidence was lost and the value of the coin plummeted to below $1 from a previous high of nearly $525.

Bitconnect was released in 2016 with the goal of allowing users to lend the value of Bitconnect Coin in return for interest payments. The marquee program was the so-called lending platform where users traded Bitcoin for Bitconnect Coin and could lock in the instantaneous value of the coin for a set period of time while earning interest calculated daily. The interest payouts were determined by a so-called "trading bot". The trading bot was the most controversial piece of the Bitconnect.co system. The liquidity of the BCC cryptocurrency funded users' ability to exchange their earnings for Bitcoin.

On November 7, 2017, the government of the United Kingdom issued Bitconnect a notice with two months to prove its legitimacy.

On January 3, 2018, Texas State Securities Board issued a cease and desist to the company, calling it a Ponzi scheme, and citing failings in user earnings transparency, and misleading statements. Texas State Security Board and North Carolina Secretary of State Securities Division warned that Bitconnect was not registered to sell securities in their respective states.

On January 17, 2018, Bitconnect shut down, and BCC prices crashed by 92% immediately after. Bitconnect announced it would refund its loans.

On January 31, 2018, a temporary restraining order froze Bitconnect's assets, expiring on February 13. However, Bitconnect as an entity never actually existed, so it is unclear what assets Bitconnect has (or ever had). An alleged India-region leader (one level below founder) of Bitconnect, Divyesh Darji, was arrested in Delhi, India, on August 18, 2018. It is suspected that Darji is connected to well-known criminal entities involved in laundering so-called "Black Money" after the Indian government's demonetization of the rupee. In 2019, Darji was arrested and released on bail in connection with a similar scam called Regal Coin.