John Bambenek: Virtual currency has become favored means of exchange for cybercriminals and those avoiding the restrictions of traditional banking. He says the design of bitcoin, as well as other virtual currencies, can lend a surprising amount of information about the groups using it to transact. Bitcoin, developed by a mysterious developer going by the name Satoshi Nakamoto, is a completely private currency. The virtual currency industry is seeing an inevitable collision with regulators if it is going to grow beyond enthusiasts and hobbyists.”]
Source: https://www.cuinfosecurity.com/cryptocurrency-gold-mine-for-open-source-intelligence-a-11052