BTCBear

BTCBear operated as an online investment platform, presenting itself as a "Bitcoin multiplier" service. The company solicited deposits from users by promising exceptionally high and unrealistic short-term returns (e.g., 1500% after one day). This business model is characteristic of a High-Yield Investment Program (HYIP), which is widely considered to be a form of Ponzi scheme. The platform is no longer operational, and numerous public reports and user testimonies indicate that it ceased payments and absconded with investor funds.