(ISC)2
SSCP · Question #331
Which of the following best defines add-on security?
The correct answer is D. Protection mechanisms implemented after an information system has become operational.. The Internet Security Glossary (RFC2828) defines add-on security as "The retrofitting of protection mechanisms, implemented by hardware or software, after the [automatic data processing] system has become operational."
Submitted by yousef_jo· Apr 18, 2026Systems and Application Security
Question
Which of the following best defines add-on security?
Options
- APhysical security complementing logical security measures.
- BProtection mechanisms implemented as an integral part of an information system.
- CLayer security.
- DProtection mechanisms implemented after an information system has become operational.
How the community answered
(25 responses)- A4% (1)
- B4% (1)
- D92% (23)
Explanation
The Internet Security Glossary (RFC2828) defines add-on security as "The retrofitting of protection mechanisms, implemented by hardware or software, after the [automatic data processing] system has become operational."
Topics
#Add-on security#System security implementation#Security lifecycle#Retrofit security
Community Discussion
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