OT security in practice: How management works with the scenarios that can hit operations the hardest<\/p>\n<\/h1>\n
When a control system becomes unavailable, vendor access fails, or a plant cannot be controlled as expected, OT security quickly becomes a matter of operations, responsibility and decision-making power.<\/p>\n
For energy and utility companies, OT security is therefore not only about protecting systems. It is about ensuring that the most important functions can continue when something goes wrong. That is why management should start with the scenarios that can hit operations the hardest.<\/p>\n
This is the third post in our series on OT security in the energy and utilities sector. In the first two posts, we focused on why OT security has become a management concern, and why OT cannot be handled with the same logic as classic IT security.<\/p>\n
If you have not read them yet, they are a good place to start:<\/p>\n
When IT and OT meet: 3 classic mistakes management should avoid<\/a><\/p>\n New risks, new requirements: 5 OT security tips for management<\/a><\/p>\n<\/div>\n With that as our starting point, we now move from recognition to practice. Because once management has understood why OT security requires a different approach, the key question becomes:<\/p>\n How do you work with OT risk in practice?<\/strong><\/p>\n The perspectives in this post are based on experience and recommendations from Mj\u00f8lner\u2019s domain experts in the energy and utilities sector, Jakob Hviid<\/a> and Andr\u00e9 Bryde Alnor<\/a>, as well as our partner J\u00f8rgen Hartig<\/a> from SecuriOT<\/a>. They work with security, operations and digitalisation in environments where resilience, uptime and responsible decision-making are critical.<\/p>\n Many organisations start with what is easiest to identify: physical security, access control, network segmentation or individual technical controls. All of these are relevant. But they are not necessarily where the risk is greatest.<\/p>\n For OT security to create real value, management should start with a different question:<\/p>\n What could, in practice, stop or seriously affect our ability to deliver?<\/strong><\/p>\n That question moves the work from general security measures to concrete scenarios that management can prioritise, test and act on.<\/p>\n A good starting point for OT security is not a long list of technical measures. It is a more fundamental management question:<\/p>\n Which functions absolutely need to work for us to deliver our core service?<\/p>\n Because OT security is not first and foremost about protecting technology. It is about protecting the organisation\u2019s ability to function. About ensuring that electricity, heat, water or production can be maintained – even when something goes wrong.<\/p>\n<\/div>\n \u201dThe essential function in our supply or production is supported by a number of sub-functions that need to be in place for everything to work optimally. These sub-functions are always supported by systems such as servers, networks and applications. If these systems fail, we come to a standstill. That is why clarifying what is acceptable, what is most critical, and how we get back up and running should be central focus points in this process.\u201d<\/p>\nStart with what absolutely needs to work<\/h2>\n
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