According to a report from the US Internal Revenue Service's Criminal Investigation Department, the US Internal Revenue Service plans to fully identify and prosecute cryptocurrency tax crimes by interviewing taxpayers' friends and family, searching social media posts, issuing subpoenas, etc. Taxation of coins. Top companies such as Apple, Google and Microsoft are also surveyed. The document recommends that IRS agents conduct interviews with taxpayers' relatives and friends, and conduct open source searches and electronic surveillance to determine whether taxpayers are doing bitcoin transactions or changes in the balance of holding bitcoins. In addition, the IRS may also review social media platforms such as Facebook and Twitter to find public BTC and ETH addresses.