They may make a great cup of coffee, but as far as holding on your personal information? 

The Starbucks App has a dangerous vulnerability to hackers and identity thieves.

It saves customer information in plain text. No encryption, no security measures, nothing.

Your password, username, and other personal information is right there for any hacker with a laptop to recover from a carelessly left cell phone.

Starbucks says they haven't received any complaints -- yet -- about personal info being stolen.

They also say the hacker would have to be pretty sophisticated to get the information off a cell phone in the first place.

But the recent mass information theft at Target shows hackers are pretty sophisticated.