The Central Intelligence Agency has reportedly been collecting data as part of a previously undisclosed program.
A pigeon carrying a 'coded message' was recently captured by authorities in India on suspicion of spying.
Demand for bug-sweeping services is now higher than ever due to how easily such devices can be hidden.
NSA whistleblower Edward Snowden has claimed that governments can take control of anyone's smartphone.
A security software firm has revealed that spyware has been hidden within the firmware of hard drives.
Lockheed Martin have showcased a new spying mechanism that is small enough to fit inside a rock.
A pigeon is being held under armed guard in India on suspicion of being on a secret spying mission for Pakistan.