This has been posted by someone who also thinks this is a scam.
“My dad has recently gotten involved with trading binary options online. The basic premise for the site he uses is at a specific time, say 1:25 p.m., you can put down perhaps $100 that XYZ stock will either increase or decrease in price within five minutes—by 1:30 p.m. If you are wrong, you get $15 back. If you are right, you win about $70.
“I’ve proven to him that, mathematically, the site has an edge and you must be right 55% of the time in order for your bet to have a neutral expected value. I am also a professional online poker player by trade so I have an extensive understanding of probability, the online gambling markets, and how these sites work.