The document discusses the top 10 security and privacy challenges of big data. It begins by explaining how big data has expanded through streaming cloud technology, rendering traditional security mechanisms inadequate. It then outlines a 3-step process used to identify the top 10 challenges: 1) interviewing CSA members and reviewing trade journals to draft an initial list, 2) studying published solutions, and 3) characterizing remaining problems as challenges if solutions did not adequately address problem scenarios. The top 10 challenges are then grouped into 4 aspects: infrastructure security, data privacy, data management, and integrity and reactive security. The first challenge discussed in detail is securing computations in distributed programming frameworks.