Sorry. Been in the banking world for many years, and now the macro economics/Bitcoin world for 2-3 years, that I forget there's so much stuff most people aren't exposed to. KYC - Know your customer. Basically financial institutions have requirements on what kind of data they have gather from you to create accounts. Internally they talk about how you need to "know your customer" well so you can be prepared to catch potentially suspicious or fraudulent activity AML - Anti-Money Laundering. They have all kinds of rules that flag transactions to potentially go under more scrutiny for possible denial or account suspension. For example: 1. Looking at type and amount of purchase you make 2. Looking at type and amount of deposits you make 3. Looking at the nature of your business (for business accounts). For example: much higher scrutiny/restrictions if your business is involved in gambling, money transmitting, payday loans. 4. Looking at your country of origin (i.e. you can be considered high risk, and possibly denied, if you're from a country that US considers high-risk)