OJA Coin presented itself as a high-yield investment program centered around its proprietary, non-existent cryptocurrency. The organization solicited investments from thousands of people in Bangladesh, promising exceptionally high daily returns. However, investigations by Bangladesh Police's Criminal Investigation Department (CID) revealed it to be a classic Ponzi scheme with no legitimate underlying business or technology. The scheme's masterminds were arrested in late 2022 after having illegally laundered an estimated 100 crore BDT (over $11 million USD) out of the country.

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