The correct answer to this open question is the following.
Although there are no options attached we can say the following.
You neither provide any specific context, so we are going to answer in general terms.
A victim is called the forgotten one because practically it is abandoned to its own luck. That is why it is a victim. Nobody takes care of his situation, He/she probably is against all-odds and the circumstances do not favor him.
Many times the victim is in the worst place at the worst time and this situation does not favor him in any way. He has no means or ways to prove other people wrong. He does not have the evidence to show he has a point.