1. Introduction to Control Systems Security

Question 1

Define electronic security

Answer 1

Actions required to protect critical systems or informational assets from unauthorized use, denial of service, modifications, disclosure, loss of revenue or destruction.

Question 2

Define control system

Answer 2

Hardware and software components of an industrial automation and control system (IACS).

Question 3

Define cyber security

Answer 3

Measures taken to protect a computer or computer system against unauthorized access or attack.

Question 4

List 5 trends in control system cybersecurity

Answer 4

1. More unauthorized access attempts and malicious code being reported by businesses.
2. Control systems use more COTS software and hardware.
3. Common use of Internet Protocols
4. Increased use of remote monitoring and access
5. Tools to automate attacks are commonly available

Question 5

How do OT (IACS) and IT priorities differ?

Answer 5

IT prioritises confidentiality, integrity and then availability. (CIA), OT is the opposite.

Question 6

What is the formula for risk?

Answer 6

Risk = Threat x Vulnerability x Consequence