A manipulation technique used in the cryptocurrency markets is the "pump and dump" scheme, which aims to artificially inflate the price of a digital asset (the "pump") and then stage a planned sell-off (the "dump") in order to benefit at the cost of unwary investors.

Here's how a typical crypto pump and dump scheme works:

1. Coordination: A group of individuals, often referred to as "pump groups" or "pump-and-dump groups," coordinate their efforts to artificially inflate the price of a specific cryptocurrency. These groups may operate on social media platforms, online forums, or messaging apps, where they plan and execute their pump and dump schemes.

2. Selection of Target: The organizers of the scheme select a relatively low-volume or low-market-cap cryptocurrency that is susceptible to manipulation. These cryptocurrencies are typically traded on smaller exchanges or have less liquidity, making them easier to manipulate.

3. Hype and Promotion: Leading up to the pump, the organizers of the scheme hype up the selected cryptocurrency by spreading positive news, rumors, or false information about the project's future prospects. They may also employ tactics such as creating buzz on social media, organizing "pump events," or using fake accounts to artificially inflate interest in the asset.

4. Pump: Once the hype reaches a peak and the target cryptocurrency's price begins to rise, the organizers of the scheme start buying large quantities of the asset, further driving up its price. This sudden surge in buying activity can attract additional investors who are drawn to the perceived opportunity for quick profits.

5. Dump: After the price of the cryptocurrency has been pumped to a desired level, the organizers of the scheme begin to sell off their holdings, often at significant profits. This sell-off triggers a sharp decline in the price of the asset as other investors panic sell, resulting in substantial losses for those who bought in at higher prices.

6. Exit: Once the dump phase is complete and the price of the cryptocurrency has significantly declined, the organizers of the scheme exit their positions, leaving unsuspecting investors with worthless or heavily devalued assets.

Crypto pump and dump schemes are illegal in many jurisdictions and are considered fraudulent activities. They exploit the lack of regulation and oversight in the cryptocurrency markets, preying on inexperienced investors who are susceptible to manipulation tactics and false promises of quick profits. Investors should exercise caution and conduct thorough research before investing in any cryptocurrency, especially those that are the target of pump and dump schemes.