Coinbase (YC S12) Adds SMS Commands So You Can Send BTC Via QR On The Q.T.

> We realize that SMS is inherently unsafe, so we use an automated phone call to you and ask you to confirm the transaction with a 6-digit pin. So in order for someone to drain your account, they would need to spoof an SMS message to Coinbase, intercept a voice call from Coinbase, and know your 6-digit pin. We do this if you try to send, buy, or sell bitcoins.