The U.S. Securities and Exchange Commission ( #SEC ) came under fire this week for its approach to regulating the #blockchain business after being criticised by billionaire tech investor and #SharkTank participant #MarkCuban for "under-the-bus" treatment of #cryptocurrency startups.

His remarks were a part of a protracted discussion with former SEC employee John Reed Stark, a cryptocurrency sceptic who rejects the "number one talking point."