Victim blaming is when you say "Well, if you hadn't been alone with somebody you didn't trust, you wouldn't have been raped"; it's technically a true statement, but it puts the onus on the woman (why was she alone with somebody she didn't trust, something she's been told not to do?) as opposed to on the rapist (why did they rape somebody?).
While it's valuable to give people tools to avoid situations that might go bad, it's still important to recognize that the person at fault for the situation going bad is the person who commits the crime, and not the person who ended up in a bad situation.