It's Cyber Monday — the day when shoppers head to the Internet to scoop up those online bargains from retailers and other sellers. Abbe Forman, assistant professor of computer and information sciences at Temple, says there's a basic buying principle that carries from the material world into the cyber world: "The scams are out there and the bad guys are out there. If something looks too good to be true, it probably is." Forman also suggests using PayPal for your transactions if you don’t feel comfortable giving up your credit card numbers.