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Chinese Principal Fired for Crypto Mining on The Job Chinese Principal Fired for Crypto Mining on The Job

Chinese Principal Fired for Crypto Mining on The Job

Headmaster Lei Hua has been fired from his job at a school in Hunan, China, after a total of nine mining rigs were found stealing his schoolโ€™s electricity to mine Ethereum, the BBC reported on Friday.

Headmaster Lei Hua has been fired from his job at a school in Hunan, China, after a total of nine mining rigs were found stealing his schoolโ€™s electricity to mine Ethereum, the BBC reported on Friday.

School Foots the Electricity Bill

The scheme was uncovered after staff heard mysterious whirring noises produced by the machines and decided to investigate.ย All told, the secret rigs cost the school a totalย of 14,700 yuan, the equivalent of $2,100 USD.

Cybersecurity expert Matthew Hickey was quoted by the BBC as saying the noise and heat generated by the rigs would be โ€œvery noticeable,โ€ but Hua reportedly staved off concerns over the noise by claiming it came from the schoolโ€™s heating and air conditioning units.

The headmaster installed mining rigs in the schoolโ€™s computer lab between the summers of 2017 and 2018. Each of these mining machines cost Hua over $1,500 USD.ย He decided to use the schoolโ€™s power because of the electricity costs associated with mining at home.ย 

Headmaster Hua was fired in October following the incident.ย The ninth machine belonged to the schoolโ€™s deputy headmaster, who was let-off with an official reprimand. Local authorities also seized any cryptocurrency mined from the operation.

Hickey says stealing energy to mine crypto isnโ€™t uncommon given the high energy costs:

“Sadly, stealing electricity is one way that people have tried to maximize their revenue – by avoiding those costs it can drastically improve returns on a mining operation.โ€

In addition to offsetting energy costs, the headmaster and his deputy were also able to harness the schoolโ€™s computing power to mine Ethereum at scale.

Other Schools Targeted for Illicit Mining

Canadian University Shuts Down Entire Network After Mining Attack
Related: Canadian University Shuts Down Entire Network After Mining Attack

A similar hijacking incident occurred last week at St. Francis Zavier University in Nova Scotia, Canada. The university discovered that the school’s entire network was compromised with mining malware.

Aย suspected phishing attack installed malicious software on the school’s network and the software tried to hijack the university’s 150 computer servers for illicit mining. In response, an administrator from St. Francis shut down their network for four days. The perpetrators of the attack have yet to be identified.