Efficient Plant June 2020 - 21

cyber safety

+	

CLOSE IT/OT GAPS
Mitigating security-based safety risks requires addressing
the cultural, procedural, and technical differences that
exist between siloed IT and OT organizational structures.
For example, many security practices have long been used
in the IT world but are new to the OT world. While many
risk-mitigation steps are similar, they're applied very
differently in the front office than on the plant floor.

+	

STAY COMPLIANT

If hackers alter manufacturing assets, the safety consequences can be significant.

Global standards now recognize the relationship between
safety and security. Safety and security standards such
as IEC 61508 and ISA/IEC 62443 provide compliance
guidelines that can help you address security-based safety
risks. The requirements may not be elaborate, but your
organization should adhere to them and stay current with
these standards as they evolve.

Protect Safety
+	
Through Cybersecurity

UNDERSTAND YOUR RISK

THE TECHNICAL NATURE of cybersecurity often leads to it being considered "just an IT issue." A cyber attack can do more than breach a network
or steal data. It can compromise a safety system and cause physical harm to
people, equipment, and the environment.
As industrial operations have become more connected, attack surfaces have
inherently grown, making industrial-control systems a popular target for hackers. Just one successful attempt-an over-pressurized pipeline, a misaligned
valve, an unexpected change in a machine's operation-can create potentially
catastrophic safety risks for people and the environment.
What can you do? Managing safety and security risks should be an integral
part of your digital-transformation journey. A properly designed security
approach will minimize security-related interruptions and frustrations, while
protecting your people and enterprise.
Here are five steps you can take to make sure your security approach
addresses safety risks.

Learn more about addressing security-based safety risks in your operations by downloading
this pdf from Rockwell Automation: literature.rockwellautomation.com/idc/
groups/literature/documents/wp/safety-wp035_-en-p.pdf?

JUNE 2020	

EP2006rmcrockwell.indd 21

Safety and security risk assessments are essential to a
risk-management strategy that address security threats and
their potential safety implications. While these assessments
will be conducted separately, they should work toward
the same goals: protecting workers, customers, and the
environment.

+	

USE PROTECTIVE MEASURES
A wide range of security measures can help protect you
from potentially harmful security incidents. Anomalydetection software, for example, can identify external
threats, human errors, and process-integrity issues that
threaten safety. Asset-management software can detect
unauthorized asset changes that could affect production
and safety. Segmenting your network into zones can help
limit access to safety systems.

+	

IMPLEMENT FORTIFIED
SAFETY PRODUCTS
Safety systems can defend against cyber threats with their
own security features. A safety controller is a prime example. It can use keyed software to help make sure firmware
is only downloaded from a trusted source. An access door
can restrict physical access to the controller. EP
EFFICIENTPLANTMAG.COM |

21

5/27/20 4:57 PM


http://literature.rockwellautomation.com/idc/groups/literature/documents/wp/safety-wp035_-en-p.pdf http://www.EFFICIENTPLANTMAG.COM

Efficient Plant June 2020

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