Material (96) attack and short term failure

https://chihaukam.blogspot.com/2024/08/me-when-did-kelvin-first-start-hacking.html

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Ref: https://chihaukam.blogspot.com/2024/08/me-when-did-kelvin-first-start-hacking.html .

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John: What is the difference between failure and attack?

Me: The impact of a failure is short term and recoverable, and, the impact of an attack is forever and unrecoverable.

John: Before we start, you may read this article. https://kamchihau.blogspot.com/2022/11/httpskamchihau_12.html.

Me: OK. I've read that.

John: What is this article about?

Me: Kelvin hack your computer and make the start up register of your  microsoft  window be disabled.

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John stand up and hand clap and say,

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John: Excellent.  Is it a failure or attack?

Me: It depend.

John: What does it depend on ?

Me: It depend on whether Kelvin try to recover the start up register of your microsoft window or not. 

John: Kelvin never try to recover the start up register of my microsoft window.

Me: That mean, you have to re-install your microsoft window. 

John: Yes,. 

Me: Consequently, the impact is forever and unrecoverable.  

John: The impact is forever and unrecoverable. Every time when Kelvin  hack my microsoft window,  I have to reinstall my microsoft window. All the information is lost.

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Me: Let me ask you a question John. How many times have Kelvin hacked your microsoft window in this way?

John: 30 times.

Me: That mean, "you" have to re-install your  microsoft window for 30 times.

John: Correct. Read this articles.  https://www.scmp.com/news/hong-kong/transport/article/3271225/effects-global-it-outage-linger-hk-express-keeps-20-flights-hold . 

Me: OK.

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Daniel: Read this article.https://www.scmp.com/news/hong-kong/transport/article/3271225/effects-global-it-outage-linger-hk-express-keeps-20-flights-hold .You hack the system of the airport.

Kelvin: Yes,.

Daniel: Every time, you hack the microsoft window of John, John must re-install the window. 

Kelvin: Yes,.

Daniel: Then, does the airport need to re-install their system?

Kelvin: No, the airport doesn't need to.

Daniel: Why not?

Kelvin: Because, it is just a short-term failure.

Daniel: What do you mean?

Kelvin: I let their system be disabled for 10 hours. And then, I let their system recover.

Daniel: Every time you hack John, you never let the computer of John recover. Now, you hack the system of the airport. You let their system recover. It's unfair to John. John must re-install his window for 30 times. All the information inside John's computer is lost.

Kelvin: John encounter a hacker's attack. The impact is forever and unrecoverable. The airport encounter a short-term failure. The impact is short term and recoverable.