Cybersecurity as the foundation

Issue 8 2021 Government and Parastatal (Industry)

Cybersecurity across all of a city’s departments, functions and systems has always been a challenge. As city infrastructure becomes more connected and includes millions of new connected devices and sensors, they have never been more vulnerable.

Whether looking to cause disruption or extract a ransom, city infrastructure has become a popular target for cyber-attacks. Transportation is an obvious target for those looking to affect the efficient running of a city and both the Swedish Transport Agency and Colorado Department of Transportation can attest to the cost. The former saw attacks disrupt and delay trains and booking websites, while the latter suffered outages in 2000 computer systems as the result of a ransomware attack.

Further examples highlight how cybercriminals are looking to disrupt city infrastructure and services, from power supply to law enforcement. With the benefits of more connected cities, therefore, come heightened risks, not only to the efficient working of the city but to the safety and security of its citizens.

Smart city cybersecurity risks

The vision of a smart city relies on a connected ecosystem of services, systems, businesses and residents, where each entity relies on the other to thrive. Driving improvements in efficiency and safety are key priorities for city officials. To achieve this, more cities are moving to become ‘smarter’ through the use of technology, the foundations for which are connected devices and data.

In short, the ‘attack surface’ of a smart city’s infrastructure is increasing almost exponentially, as more devices become connected to city systems – the so-called Internet of Things – and as more previously separate systems become integrated. The explosion in the number of connected devices has brought an even larger growth in attacks. Reports in 2019 claimed a 300% increase in cyber-attacks on IoT devices over the year, a number which is likely to have escalated further since.

The reasons for the growth are clear. A cybercriminal is constantly probing for a vulnerable entry point to a network, with the aim of then moving through other connected systems to reach their desired destination. The most innocuous connected device, if insecure, could provide the point of access through which a cybercriminal reaches a far more critical system.

For instance, it doesn’t take a great leap of imagination to envisage how a ‘smart’ domestic electricity meter might provide access to systems which have a more central role in the provision of power. As a well-known example from the Ukraine illustrates, such attacks can affect the power supply to hundreds of thousands of people.

It’s essential, therefore, that in a desire to reap the benefits of a more connected smart city, authorities don’t ignore the critical importance of keeping systems secure. Indeed, a cybersecurity-first approach is needed. As Axis covers in detail in its whitepaper, security is the key to the connected metropolis.

Employing a converged security approach

Connected systems and data demand a connected security strategy. Unless all of a city’s stakeholders agree on the scale of the risks and critically, the strategy to defend against them, cybersecurity will be fundamentally flawed. Indeed, with both electronic and physical security sitting alongside each other on corporate networks, a converged security approach has never been more important.

A converged security approach breaks down silos and empowers different business teams to work together towards a common goal. It is vital that physical security teams can rely on technologies that support their operational requirements and address associated risks, while at the same time, supporting IT security policies and ensuring that physical devices do not become the back door into the corporate network. With all stakeholders working together, it’s possible to create a secure cyber and physical environment.

Of course, the stakeholders in ensuring a converge approach to smart city security don’t only include employees of the city authorities. Every partner, vendor and supplier to the city’s infrastructure has a role to play – supply chains have been demonstrated to be one of the weakest links in organisational cybersecurity. Due diligence is critical, with city authorities needing to ensure that suppliers not only understand the risks around cybersecurity, but that they can demonstrate a mature cybersecurity approach within their own organisations.

Balancing convenience with risk

Cities will continue to be a target for cybercriminals. Antiquated technologies, the lack of a digital transformation strategy and poor controls around connected devices all provide opportunities for cyber-attack. Cities need to adjust their priorities to the realities of a networked urban landscape.

While the convenience of the smart city is enticing, it becomes about a careful balance between the benefits of smarter operations and the related risks.

A foundation for cybersecurity is to ensure that all IoT devices and network end points are as secure as possible. But the task is never completed and it is important to understand that cybersecurity is all about hard work and diligence every day. Understanding and detecting potential threats is key and working with an ecosystem of partners that work in close partnership to secure systems is critical.

It’s time to move to a proactive stance in protecting assets, before cities implement billions of hackable, un-patched and non-upgradable devices to the world’s digital grid.

Find out about cybersecurity in smart cities. Steven Kenny, industry liaison manager at Axis and Jens Strinsjö, smart cities lead for Northern Europe at Axis, have co-authored a whitepaper, Smart city security: The key to the connected metropolis, which you can download at https://www.axis-communications.com/Smart-city-Security-The-Key-to-the-connected-metropolis (or via the short link: www.securitysa.com/*axis7).


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