There is no better time than the holidays for scammers to prey on smartphone users.

Consumers on this Cyber Monday will fill their digital shopping carts in record numbers. Online sales today are expected to reach more than $3 billion, and with more than 85 percent of shoppers doing their buying on smartphones, criminals are finding new ways to access people’s information.

And experts say malicious apps may be providing the back door.

Don’t miss Anna Werner’s report on fake smartphone apps on “CBS This Morning” Monday at 7:00 a.m. ET!