As disruptive technologies such as 5G launch, the number of connected devices is poised to increase dramatically. Indeed, Intel predicts that a remarkable 200 billion connected devices could be operating by 2020. But this sharp rise in connected devices creates more opportunities for hackers, and cyber-attacks are becoming increasingly sophisticated. A growing number of attacks are now developed with the express aim of compromising IoT functionality, according to the ENISA Threat Landscape Report. Last year malware was identified that was designed to compromise industrial safety systems, which could have devastating consequences. All of this makes security of the IoT an urgent matter. But while it is crucial to ensure secure IoT devices and services, it is also important that we maintain the high level of innovation the IoT has generated thus far to guarantee further development and growth.
Security – an afterthought
 IoT security is often overlooked in the development of connected devices, either because the manufacturer lacks the technical expertise or is facing commercial pressure to get products into market quickly. These factors, combined with a landscape of rapidly-emerging standards and technologies, has introduced a new set of risks. One of the most devasting cyber-attacks that originated from IoT devices was the Mirai botnet attack of 2016. The incident saw huge numbers of devices infected with malware that attacked core Internet infrastructure. Approximately 24,000 devices were targeted, with the University of California putting the cost of the incident at $300,000. Alas, Mirai has not been an isolated incident. This year a new variant of the botnet was detected, which targets enterprise networks and has the potential to infect an even wider set of Internet-connected devices. As the IoT ecosystem grows, so does the threat. This is the challenge that industry faces moving forward.
The options to deal with the journey ahead are

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