You have been silently Rick rolled.
Hate to roll you like that but if it teaches you not to click on a "Free Stuff" link it was worth it.
The Internet is much like a city complete with beautiful, enriching areas as well as its seedy high crime zones.
Problem is, there are not always obvious street signs that reliably warn us of trouble. Sometimes the good and the bad can look deceptively similar.
It takes a combination of common sense and education to effectively guard yourself against online threats.
So be cautious, be smart. If it looks too good to be true, it is.
Be honest, that song is playing through your head isn't it?