An interesting article was pointed out to me over on the AndroidPolice.com site that says, “Massive Security Vulnerability In HTC Android Devices (EVO 3D, 4G, Thunderbolt, Others) Exposes Phone Numbers, GPS, SMS, Emails, Address, Much More“…
This article pretty much says it all…
There is even a work-around, but not an official fix for the security vulnerability from HTC as of this date.
The authors of the above article also state that you should be careful as to which apps you load, as you never know which one could actually exploit the vulnerability and expose your information to the world.