This was pretty much answered in my response to Question I: Have you kept your sexual abuse a secret?. I protected all my perpetrators. My dad, my brother, my uncle, my cousin, my dad's girlfriend's two brothers and the adult/child relationship I had.
I didn't tell anyone of the abuse while it was happening. And as I previously journaled, I even kept the secret from the perpetrators themselves. By pretending to be asleep and therefore, 'not knowing of the abuse'. If I acknowledged the abuse, then I would have been the 'bad' person.
Who and how can you tell when there is no one to tell? I couldn't tell my dad, who was sexually abusing me, or my brother, who was sexually abusing me. I couldn't tell my mom, who abandoned me to my pedophile father. My dad made sure that I knew my mom didn't want me and that if he didn't 'chose' to be a single father, I'd be in foster care. When sexual abuse runs in the family, there is no one to tell.