Cell Phone Spyware

Another possible way to gain unauthorized access to mobile devices is the use of special software which is installed surreptitiously on a cell phone to intercept or take partial control over the settings and actions of the device (so called spyware). Only a singular, short access to the target device is necessary to install the spyware. 

Today, powerful interception software tools are available in the internet at low-priced download rates (e.g. Flexispy).

Once installed, the spyware works unnoticed by the user. The invader can now listen in on the calls and intercept text messages or emails.

Furthermore, a corrupted cell phone can be used to listen in on nearby conversations. The spyware enables the activation of the microphone by an incoming call, without signaling the operation by tone or display.

According to recent reports it is even possible to install spyware, exploiting a security hole in the service-sms protocol, meant for delivering firmware upgrades unnoticed by the customer. Reportedly, the corruptive code is send to the device by a not displayed SMS, without any need for physical access.