Often in the tech industry, people have a tendency to focus on the successes and ignore the failures of cofounders. Of course, this is a dangerous path to take, as you can’t learn from history if you ignore it. One example that Inc. decided to write about is YouSendIt, a file-sharing service. The entire saga is worth reading and features a declining startup, cyberattacks, FBI involvement, a disgruntled co-founder, and betrayal. If you’re reading this Aaron Sorkin, I’ve found your next movie.