This link gives a little more background: https://news.bitcoin.com/proposed-u-s-legislation-may-criminalize-those-who-conceal-bitcoin/ https://news.bitcoin.com

This link gives a little more background: https://news.bitcoin.com/proposed-u-s-legislation-may-criminalize-those-who-conceal-bitcoin/ https://news.bitcoin.com/proposed-u-s-legislation-may-crimin... > A ‘prepaid access device’ means an electronic device or vehicle, such as a card, plate, code, number, electronic serial number, mobile identification number, personal identification number, or other instrument, that provides a portal to funds or the value of funds that have been paid in advance and can be retrievable and transferable at some point in the future. To me that seems pretty clear they're targeting cryptocurrencies held outside of exchanges.