The growing use of Industrial Internet of Things (IIoT) worldwide is in the process of turning the concept of smart factories into reality. The phenomenon has been described by observers as the fourth industrial revolution, or Industry 4.0 for short. Big things are expected. Analysts at Gartner expect manufacturing to account for 57% of total IoT spending in 2017, while total enterprise IoT investments will reach $964 billion. Industry 4.0 promises to combine digital technologies with all-pervasive internet connectivity to produce valuable data. Companies then mine, analyze and convert the information into a wealth of insights. The knowledge will then be used to boost factory productivity, increase supply chain efficiency and make cost savings. As always, new trends bring fresh challenges. Connecting industrial machinery to the outside world can lead to new security risks. Deployment of virtual private networks (VPNs) can help reduce such risks significantly, ensuring that Industry 4.0’s data treasures stay hidden from unwelcome observers.
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