German Michael Gastauer is a hustler on the gray and black side of the financial market. Not coincidentally, his latest company is called Black Banx (previously WB21) and promises to get bank accounts for individuals and merchants accounts in over 180 countries in minutes. On LinkedIn and its website, Black Banx claims to have 8 million customers and $10 billion in monthly transaction volume. We doubt the figures of this high-risk and dark side payment processor. The UK FCA has issued a warning against Black Banx.