An IT engineer in the UK accidentally threw away the hard drive containing 7,500 Bitcoin private keys as trash. According to the current price of 37787 million US dollars, he estimated that it was about 283 million US dollars.
The blockchain analysis company Chainalysis released a report in June 2020 showing that at least 3.7 million bitcoins have not been touched for at least five years. Encrypted data company Glassnode estimates that approximately 3 million bitcoins will be lost forever. Since the bull market in October 2020, approximately $7 billion in Bitcoin has been rediscovered.