Charting the Rise and Fall: Seven Iconic ICOs that Transformed Technology and Those That Crashed

Centra Tech: The Scam ICO

Centra Tech's ICO in 2017, which raised over $25 million, is a cautionary tale of fraud in the blockchain world. Promoted by celebrities like Floyd Mayweather and DJ Khaled, Centra Tech was later revealed to be a scam, with its founders charged with fraud. This incident underscores the need for investor vigilance and regulatory oversight in the ICO landscape.