I have heard smartphones may pose a dangerous security threat to enterprises; due to an internal structure of sensors through which vibrations can be detected remotely, attackers with the necessary tools may gain access to words with an accuracy of up to 80%. Is this a genuine threat enterprises should prepare for? If so, is it time for me to tell my executives they can't place their phones near their keyboards anymore?
The risk of smartphone eavesdropping of keyboard vibrations was first pointed out by Philip Marquardt of MIT Lincoln Labs and colleagues from Georgia Tech in a paper presented at the ACM Conference on Computer and Communications Security in October 2011. The researchers demonstrated a theoretical keyboard eavesdropping attack, waged using the accelerometers present in smartphones.
In their controlled laboratory environment, Marquardt and his colleagues used an iPhone 4 to monitor a user’s typing on a nearby keyboard. They claimed being able to achieve accuracy rates between 46-80% in reconstructing the words typed on the keyboard during such an attack.
Fortunately, enterprise employees don’t work in controlled laboratory environments. In addition to requiring the user to place his or her smartphone in direct proximity to the keyboard, the attacker must first have convinced the user to install and execute a malicious application on the device. The unlikely confluence of these circumstances greatly mitigates the threat to real users.
The bottom line is security professionals have plenty of real-world risks to worry about, and it’s not worthwhile to let this one keep them up at night until actual exploits in the wild begin to occur. I suspect this threat is unlikely to cause trouble in the foreseeable future.
Dig deeper on Smartphone and PDA Viruses and Threats-Setup and Tools
Related Q&A from Mike Chapple, Enterprise Compliance
Social media compliance is not typically considered a big issue for companies, but expert Mike Chapple explains why it should be.continue reading
Metadata tagging is not just for security. Expert Mike Chapple explains how tagging tools can be used to achieve PCI DSS compliance.continue reading
Before using the HIPAA-compliant cloud services from Google, there are some things companies need to know, according to expert Mike Chapple.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.