The German government has just shuttered 47 cryptocurrency exchanges, accusing them of knowingly allowing an “underground economy” for cybercriminals to flourish, and is now turning its attention to its potentially criminal users. “[They have been] deliberately concealing the origin of criminally obtained funds on a large scale through inadequate implementation of legal requirements for combating money laundering,” Germany’s federal criminal police office, Frankfurt’s main prosecutor’s office and the country’s office for combatting cybercrime alleged in a Sept. 19 statement. The authorities al…