OT vs IT: Securing the Industrial World
Power plants, water works and factories run on operational technology, and protecting it takes more than a regular firewall.
- 기술
- 어른
- 보통
- 교육용
- 10문제
- 약 5분
- 문제마다 피드백
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1번 문제
In OT security, which goal usually comes first?
- Availability and safety of the process
- Confidentiality of stored data
- Anonymity of the plant operators
- Speed of software updates
2번 문제
Why are PLCs in a plant often left unpatched for years?
- Their vendors forbid any software changes
- Patching needs downtime and retesting the process
- They cannot be infected by any malware
- Patches for them only exist on paper
3번 문제
Which malware, found in 2010, sabotaged Iranian uranium centrifuges?
- WannaCry
- NotPetya
- Stuxnet
- Mirai
4번 문제
What is a key security weakness of the classic Modbus protocol?
- It only works over satellite links
- It has no built-in authentication
- It encrypts data with a broken cipher
- It needs a cloud server to run
5번 문제
In the Purdue model, which level holds the physical sensors and actuators?
- Level 3
- Level 4
- Level 0
- Level 2
6번 문제
A plant claims its OT network is air-gapped. Which still threatens it?
- A USB stick plugged in by a contractor
- Phishing emails sent to the OT switches
- Ransomware in the public cloud only
- Weak passwords on the cafeteria Wi-Fi
7번 문제
Which standard series is built specifically for industrial automation security?
- ISO/IEC 27001
- IEC 62443
- PCI DSS
- ISO 9001
8번 문제
Why is aggressive active scanning risky on an OT network?
- Old devices may crash from unexpected traffic
- Scanners legally count as an attack there
- OT devices hide behind invisible IP addresses
- Scans permanently erase network switch logs
9번 문제
In 2015, attackers cut power to about 225,000 people in which country?
- Estonia
- Ukraine
- Germany
- Georgia
10번 문제
What device allows data to flow only one way out of an OT network?
- A load balancer
- A VPN concentrator
- A data diode
- A proxy server
