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Is it a good idea to connect SCADA computers to Internet (For some updates) ?

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تم إضافة السؤال من قبل Hassan Idami
تاريخ النشر: 2016/02/03
Nasir Khan
من قبل Nasir Khan , Instrumentation Engineer / Site Supervision Engineer , Associated Consulting Engineers-ACE (Pvt.) Ltd.

The PC that we use for SCADA software is not a general purpose computer and our SCADA software is a full package for a control system (no need of updation required for this software). 

The PC used in SCADA must have a proper operating system and operating system needs updates for its general features.

I think its not a bad idea to connect SCADA PCs to an internet for updation of only operating system features.

Mohamed Ahmed Khogli Ahmed
من قبل Mohamed Ahmed Khogli Ahmed , Automation and SCADA Engineer , Arabic Engineering Company

if you have strong fire wall you can do this job quickly and disconnect it from intrnet.

Hassan Tahiri
من قبل Hassan Tahiri , المسؤول عن الصيانة , MICMAINTE

  • better not connect your SCADA systems to the Interne

Ahmed Mustafa
من قبل Ahmed Mustafa , Electrical Sections Manager , Coca-Cola Egypt

not recommended for security issues

Hasan Zainy
من قبل Hasan Zainy , Control / Instrumentation Filed Service Engineer , GE

I think you should highly avoid this as your system is might not designed to be plug on the internet. you need to have the risk assessment for your network and their risk factor. 

 

here one of the accident in 2003 reported in ISA 62443-2-1  for (Security for Industrial Automation

and Control Systems Part2)

In 2003, a Worm spreed across internet and privet network crated damage to loos HMI and Historian data for petrochemical industry. 

 

I think your Scada can have alternative as download the update or patch file to computer with internet then transfer it to your scada by CD after checking it with antivirus or you can transfer it by usb after formatting it to make sure no any unwanted files will be transferred.

 

I suggest you to check the series of documents starting with 99 (ANSI/ISA–99.0x.0x) speak about the security of the automation and control 

 

 

 

 

 

Haseeb Ur Rehman
من قبل Haseeb Ur Rehman , Assistant Manager Project , AZA Engineering

no, because there is risk of security issues like virus  

Ayid Elsayed
من قبل Ayid Elsayed , Head of Instrumentation , Sudanese Sugar Co-Assalaya Industry

Not good, because it may be attacked by virus from unreliable website

Mohamad Yahya Mahmoud Zaid
من قبل Mohamad Yahya Mahmoud Zaid , Instrumentation and Control Consulting Engineer مهندس استشاري أجهزة دقيقة و تحكم آلي , Petroleum Pipelines Company (PPC) شركة أنابيب البترول

Do NoT ,,,,, but if necessary .... you can update by USB stick (USB flash memory) by download the needed updates from your SCADA Company's site ( using another computer ,,, Not your SCADA computer) to your USB drive ,, and after scan it and be sure that it is clean and not containing any   threads or malware (using strong antivirus), then , you can transfer this updates to SCADA computer by USB driver

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