The business card idea makes Schacht wonder whether the tiny balls might be added to a birthday card to reveal a surprise message when the card is held over birthday-cake candles.
Mobile users can also be duped through so-called "smishing" -- a combination of the words SMS and phishing -- where a user receives a text message asking for personal information like a credit card number, e-mail address or social security number.
Customers choose their card design, personalize it with a message or their own images and then outsource the printing, addressing, stamping and mailing to the Punch Street team.
It sends a message to your pager every time your credit or ATM card is debited, your front door unlocked or your television set or any other consumer appliance switched on.
For example, the 2009 Report Card found that 27% of colleges and universities were incorporating a message on sustainability in their admissions and interview process.
He unwittingly told an undercover FBI agent whom he met on the site's message board that he had a contact in California who could use stolen credit-card numbers to produce counterfeit cards, the complaint says.