There are a few precautions you can take. Keep the number of conspirators as small as possible. Involve them in the details of the plot only as necessary; the less they know, the less they have to blab. Revealing the schedule of your plan as late as possible before you all act will give them no time to back out. Then, once the plan is described, stick to it. Nothing sows more doubts in conspirators’ minds than last-minute changes. Even given all this insurance, keep in mind that most conspiracies fail and, in their failure, create all kinds of unintended consequences.
