What is SCADA?
Scada stands for Supervisory Control and Data Acquisition. This is in reference to the
industrial control systems for infrastructures like water treatment plants, gas pipelines or power
generation plants. In simpler form, these are systems that are in control over large scale sites with
these infrastructures. Most of the functions are automatically controlled.
Vulnerabilities with SCADA
Many things in this world change over time to keep up with modern technology trends.
However, many SCADA systems have not. These are very important systems in these
infrastructures, however they do hold many vulnerabilities within. With technologies rapidly
growing in complexity everyday, this allows and opens up these systems to different threats and
cyber attacks, that might not have been there years ago.
Security Issues
There seems to be a large misunderstanding that all SCADA systems are very secure
because of lack of cyber connection. This is incorrect. There are so many different systems
within the system that operators think are very secure, however, being connected with external
networks for data storage or maintenance, allows for so many different threats and cyber attacks
to be more common and easily accessed by hackers.
Encryption & Authentication
Most of these systems are decades old and probably need some updating. A big
vulnerability is authentication issues. One of the most major threats is unauthorized access to
these systems. This could refer to humans, viruses or infections within and then hackers of
course. Many of these systems are very outdated and need a lot of updates to keep up with the
ever changing IT world. Hackers who are able to reach within SCADA systems could gain
access to all kinds of data. They could change safety measures or software updates. It could also
cause a complete shut down of the system and could possibly even cause physical harm to those
around these facilities.
Mitigation of these Vulnerabilities
As with any type of technology system or anything else in the IT world, it comes along
with many risks and vulnerabilities to hackers and cyber attacks. Some items that have been put
into place to try to decrease and/or eliminate as many breaches as possible are protocols, VPNs
and firewalls, updated authentication process and limiting access or monitoring it more in depth.
Firewalls are used to help encryption for how data is transmitted throughout the system without
any possible leaking of special information. It is also used to try to redirect those who are not
authenticated to access such data. Multi-factor functions have also been seen more now than
before. This also almost guarantees that whoever is trying to access data is permitted to do so.
Conclusion
Scada systems are a huge part of the infrastructure world although they come with risks
just as everything else does, especially in the cyber world of things. There has been a huge
process over the years though, of trying to avoid as many vulnerabilities to these systems as
possible. As mentioned above, with the implementation of protocols, multi-factor
authentications, updated systems and networks, it has helped with the vulnerabilities that
SCADA systems carry. Maintaining protection for these systems is essential for these
infrastructures to continue to run on a safe level and keep up with modern life.
References
SCADA Systems Concepts. (n.d.). Supervisory Control and Data Acquisition (SCADA) systems
overview.
Alanazi, M., Mahmood, A., & Chowdhury, M. J. M. (2023). SCADA vulnerabilities and attacks:
A review of the state-of-the-art and open issues. Computers & Security, 125, Article 103028.
https://doi.org/10.1016/j.cose.2022.103028