I've read; both on this site, and other forums; that the website "Bicoin Fog" is a scam, and that it is insecure. Can someone confirm whether or not this is true, and if so; are there any legitimate sites that provide the same service? Thanks for the help. 
where have you read about it?
I never heard about Bicoin Fog but I was there just like now ... and I cannot find any reliable info about this ... project.