Bob is a keen administrator with Company XYZ. Bob has renamed his administrator account to Julius in order to hide the real administrator login. However, recently he has discovered that there are…

Bob is a keen administrator with Company XYZ. Bob has renamed his administrator account to Julius in order to hide the real administrator login. However, recently he has discovered that there are people who are trying to run attack on the Julius account and they are attempting to get privilege access. How did the attacker find out which account was the local administrators account?