A school principal has been sacked and his deputy disciplined for secretly mining digital currency on campus, racking up thousands of dollars in power bills for the school.

Lei Hua, principal of the Puman Middle School in Chenzhou, Hunan province, decided in June last year to mine Ethereum, a type of cryptocurrency.

He spent more than 10,000 yuan (US$1,440) on a -ldquo;mining-rdquo; machine but found that he could not pay for the huge amount of electricity needed to run the around-the-...


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