According to recent findings of two Washington based financial intelligence analysts, North Korea has been successfully escaping stiff sanctions imposed against their banking system by using crypto assets to trade.
I use the Trezor Wallet @ https://trezor.io/?a=cryptocousins.com
I also use The Binance Exchange @ https://CryptoCousins.com/Binance 
FREE BITCOIN:
Open a Coinbase account @ https://CryptoCousins.com/Coinbase & receive $10 worth of Bitcoin.