Retailers across the country hope shoppers cashed in on online deals during "Cyber Monday."

Superstores such as Wal-Mart and Best Buy kicked off cyber deals over the weekend.

Analysts were expecting heavy online traffic. Last year, "Cyber Monday" generated around $2 billion in online sales.

However with the spike in sales, there is also a spike in crime. Online fraud skyrockets during the holiday shopping season, as people searching for the perfect gifts take to cyberspace and head to traditional stores armed with their smartphones.

"The Pandora's box of cyberattacks is about to open," says Pete Tyrrell, chief operating officer for Digital Guardian, a Waltham, Massachusetts-based data protection firm. "The cybercriminals are getting more and more creative -- and at the end of the day, it's your personal information at risk."