From IoT (Internet of Things) perspective, a "thing" is an inanimate object (either virtual or physical), which includes control electronics, software and sensors, monitoring a specific value or values, providing its ability to serve for a given purpose. Such a device (system) works autonomously and provides data that are shared either by fixed lines or wirelessly with other things or systems. It is important that Internet of Things is primarily based on data provided by things, rather than these things as such.
For IoT we can define a broad range of devices, such as smart cars with built-in sensors, smart household devices, electrical appliances, heart implants for blood pulse monitoring, bio-chip sensors, cameras for live recording transmission, DNA analysis devices or field-based devices designed for search and rescue operations etc. IoT applications can thus be found in all areas of our life, such as retail business, health services, manufacturing industry, power engineering and transport/logistics. Unfortunately, IoT availability has recently resulted in a significant increase of IoT abuse for cybercrime.