How does a spammer like Wallace access accounts as he did with Facebook?

maven: How does a spammer like Wallace access accounts as he did with Facebook?
How does a spammer hack into FB and get to accounts?

Answers and Views:

Answer by ╘ JONATHAN ╛
well there are limitations on the privacy settings. Unless you select what people can see, everyone can see all of your info and photos.
Adjust Privacy Settings>