Trillion-dollar crypto collapse sparks flurry of US lawsuits – who’s to blame?

Kim Kardashian and Floyd Mayweather among those being sued, but prosecuting fraud in the crypto arena is notoriously difficult

With investors worldwide looking at a collective $1.5tn in recent cryptocurrency losses, a blizzard of class-action lawsuits are being prepared. One big question is: who, if anyone, is to blame - and who could be held to account?

With inflation and interest rates rising, the best-known cryptocurrencies have been hit with heavy and continuing losses: Bitcoin has lost more than 50% of its value this year; Ethereum, its largest rival, is down 65%; and the total value of crypto assets has dropped to less than $1tn from its November 2021 peak of $3tn. US federal regulators say 46,000 people have reported losing $1bn in crypto to scams since January 2021.