This was probably the most expensive way to send $130 ever In June 2020, someone sent 0.55 ETH, about $130, with a transaction fee of 10,668 ETH That was $2.6 million in fees The next day, the same wallet did it again. 350 ETH sent, another 10,668 ETH paid in fees $5.2 million in fees in under 24 hours Researchers traced the wallet to a small South Korean exchange A week later, it sent an on-chain message to the mining pools that just said “I am the sender” By then, Ethermine had already shared its 10,668 ETH out among its miners Today, that ETH alone is worth about $24 million It’s still unclear whether it was a bug, a hack or a blackmail attempt