That said, it's not really news and doesn't bring any new information to the Bitcoin discussion on Hacker News.
I wonder what hawaladars' techniques for information and communications security are like, and what efforts people have made to spy on their communications -- or to defraud them by impersonating another hawaladar and originating fraudulent payments.
By using personal trust relationships, hawaladars don't need to solve the full Byzantine Generals problem, but they do face authentication and confidentiality problems from outsiders.
>Most hawaladars take care of money transfers as a side part of their small business, so often hawaladars pay each other back in non-monetary ways. The most common case is by discounting goods in an export/import business. So in Ibrahim’s case, if the hawaladar he visits in Dubai exports goods to the hawaladar in Alexandria, the Dubai based lender can pay off his debt by discounting the value of his goods.
If the cost of the imported goods is discounted, then proportionally less import tax will be paid.