Think about planning for a natural disaster emergency that might affect your home. You'd likely store some water, flashlights, food, blankets and other essentials. The key element of your planning would be proactivity. You'd do all of the work before an emergency occurred, not during the actual crisis. If your supplies were used up after the emergency passed, then you would restock before the next disaster might strike. Protecting data requires a similar approach: putting in place as many safeguards as you can before anything bad happens.