What is the purpose of the organization called "Dear Diary" in the novel, Whiskey Tango Foxtrot?

Dear Diary is a secretive organization of people who have rallied together to oppose the Committee and to protect information privacy (note the name “Dear Diary” is used to denote entries in a traditional, physical, privately kept journal or book). Dear Diary consists of numerous cells of dozens upon dozens of individuals in various cities throughout the world. They have been monitoring and doing what they can to slow the Committee’s reach and growing power, but it is only when Leila, Leo, and Mark come to work for Dear Diary that they are able to develop a singular plan to take down the Committee. Mark is given the task by Dear Diary of planting a computer virus on Sine Wave Two to cripple the Committee.