According to the MyBroadband report, 24-year-old Mark Michaels from South Africa lost the key to his wallet which had 20 bitcoins in it. Michaels checked bitcoins after seven years when he had first mined them when BTC had hit $1,000 per coin. He remembered that he had stored his mined BTC on the original bitcoin wallet software. However, he had made a big mistake as he formatted the hard drive holding coins. In today’s bitcoin price, Michaels’ BTC would be approximately $900,000.