Well, to start:
1. Allegations need to be taken seriously, and investigated fairly.
2. Guilty parties must not be protected. This obviously refers to abusers, but also includes those who level false accusations.
3. Rabbanim and other leaders should express loudly and often that the community “image” suffers more from one case of a cover-up than from one hundred cases of abuse.
4. Parents and caretakers should be trained to recognize signs of abuse. (BH, many schools do this already).
5. Children must be educated as to how to recognize inappropriate behavior and how to protect themselves (BH, many schools do this as well).