Cyber Monday is the online counterpart to last week's Black Friday, minus the long lines.
The bureau urges consumers to trust their instincts offers that sound too good to be true often aren't.
Some tips include keeping documentation of your order when you shop online and checking your credit card statements often for suspicious activity.
A computer used for shopping should have the most recent updates installed for spam filters, antivirus and anti-spyware software.
Federal law requires that orders made by mail, phone or online be shipped by the date promised or within 30 days. If the goods aren't shipped on time, the shopper can cancel and demand a refund.