A Doubler (Doubler, from "double"), also called a doubler, is a type of short-lived hype project whose organizers promise participants the doubling of their deposited amount after a fixed period of time, for example after a day. The appeal of such offers is built on unrealistically high and fast returns.

In essence, doublers represent a typical financial pyramid: payouts to early depositors are made at the expense of new participants' funds. As soon as the inflow of new money stops, the project stops paying and shuts down, and most of those who invested lose their funds. There is usually no real economic activity behind such schemes.

Signs of a Doubler

• a promise to double the deposit in a very short time;
• the absence of a transparent business model and source of income;
• guarantees of profit and aggressive advertising;
• anonymous organizers.

Understanding the mechanics of doublers helps to recognize fraudulent schemes. Any promises of guaranteed and fast doubling of funds in the crypto sphere should be treated as a serious risk signal.