Chemical Engineering July 2016 - 42

Plant Functional Safety
Requires IT Security
Cybersecurity is critical for plant safety. Principles developed for plant safety can be applied to
the security of IT systems
Peter Sieber
HIMA Paul Hildebrandt
GmbH
In BrIef
SAFeTy AnD SeCuRITy
STAnDARDS
WHAT RequIReS
PROTeCTIOn?
APPLyInG SAFeTy
PRInCIPLeS TO
SeCuRITy
InTeGRATInG BPCS AnD
SIS
IT SeCuRITy AnD SAFeTy
ReCOMMenDATIOnS
W
42
hen the Stuxnet computer
worm attacked programmable
logic controllers (PLCs) at Iranian
nuclear facilities running
an integrated system, centrifuges were
commanded to literally rip themselves
apart. This clear demonstration of the link
between cybersecurity and safe industrial
operations was a worldwide wakeup call for
plant managers, IT and automation managers,
safety engineers and many others.
Of course, smaller-scale attacks are much
more likely, and they are happening. At one
plant, where system maintenance was carried
out remotely, a cyber attack from abroad
revealed the vulnerability of using simple
username/password authentication for remote
access. The attack was discovered
only after the data transmission volume exceeded
the company's data plan.
Cyber-related safety risks do not necessarily
result from criminal activity. During the
commissioning of one plant, for example,
the failure of engineering software during
the recompiling of the memory mapped
input (MMI) following a plant shutdown led
to a situation in which an incorrect modification
was loaded into an integrated safety
controller, and then activated.
These incidents demonstrate the need for
specific IT security improvements, and at the
same time, raise broader questions about
ChemiCal engineering www.Chemengonline.Com July 2016

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Chemical Engineering July 2016

Table of Contents for the Digital Edition of Chemical Engineering July 2016

Contents
Chemical Engineering July 2016 - Cover1
Chemical Engineering July 2016 - Cover2
Chemical Engineering July 2016 - Contents
Chemical Engineering July 2016 - 2
Chemical Engineering July 2016 - 3
Chemical Engineering July 2016 - 4
Chemical Engineering July 2016 - 5
Chemical Engineering July 2016 - 6
Chemical Engineering July 2016 - 7
Chemical Engineering July 2016 - 8
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Chemical Engineering July 2016 - Cover3
Chemical Engineering July 2016 - Cover4
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