Botnets. School computer labs. Kids in their parent's basement.
No rational person who bears the full cost of their actions would mine on a CPU anymore. But 1) not everyone is rational and moreover 2) not everyone bears the full cost of their actions.
No rational person who bears the full cost of their actions would mine on a CPU anymore. But 1) not everyone is rational and moreover 2) not everyone bears the full cost of their actions.