5 Tips to Improve OT Security

Computer with software at office

Changing
OT Security

In recent years OT Security has changed with the emergence of OT being connected to IT – also known as the OT/IT convergence.  

In this article we briefly set out 5 tips to improve your OT security.  

1) Asset Inventory

You can’t protect what you don’t know you have.  

Keeping a complete and updated asset inventory will allow you to protect your assets. 

This tip is the most important and basic at the same time. The asset inventory is the baseline in your OT security management. 

2) Organization

Back in the days OT and IT departments had little overlap, but today this has changed. 

Therefore, it is important to bridge the gaps organizationally between OT and IT e.g. which employee within OT has the responsibility to coordinate with IT Security? 

It is necessary to define organizational responsibilities in the areas where departments have overlapping roles.  

As an example, make sure that the security policy defines who is responsible when IT and OT systems are overlapping so that security gaps are covered. 

3) Legacy, Present and Future

Clean up Your Past 

Most companies have their eyes set for the future and its possibilities. 

Few organizations take their time cleaning up their past, which in the case of OT security would mean securing legacy systems with vulnerabilities.   

Monitor Your Present 

Having secured you legacy systems you should make sure that you have the capability to discover occurring attacks. You do this by continuously monitoring your OT environment. 

Plan for the Future 

Now that you have secured your past and present you should prepare your company for the future.  

Give thought to the future developments of your sector, so that you can make an agile plan for your plant that is able to embrace new technologies. 

4) Use Software to Analyze your OT Environment

Everything is connected in one way or another. Therefore, you should monitor your OT environment automatically using designated software.  

Today, it would be impossible to secure your OT environment without software automatically providing you with an overview of assets, their communication, vulnerabilities and potential attack vectors. 

5) Do the Work

Make sure that you do the work of securing your OT environment 

An analysis won’t help you if you don’t do the work securing legacy systems, change configurations, update passwords, enforce security policies, etc. 

Transparency Make OT Security a Win-Win situation

Make sure your OT security efforts become a win-win situation for your company.  

Employing the right transparency tools to your OT environment can bring benefits such as identifying inefficient processes and predicting assets that need maintenance. 

This could improve your bottom line and smoothen work procedures on top of improving OT security and the safety of your employees.