[Yesterday, we published my review of Tim Schwartz's new guide for whistleblowers, A Public Service: Whistleblowing, Disclosure and Anonymity; today, I'm delighted to include this generous excerpt from Schwartz's book. Schwartz is an activist whom I've had the pleasure of working with and I'm delighted to help him get this book into the hands of the people who need to read it. -Cory]

Collection As you collect documents and bring new information to light, be aware that you are in an escalating digital arms race. There will always be new ways that data forensics can identify you, or uncover information based on data that you inadvertently leave in your files, or data that is retained in logs noting who has accessed what files on what network. Recently it was discovered that noise from electrical grids can be used to quite accurately pinpoint when, and potentially where, an audio recording was made. The best way to win this war—or at least to avoid becoming collateral damage—is to work outside the standard methods and find partners who have experience. Read the rest