In my security course at university, we covered three components of network security, which were confidentiality, availability, or integrity. I'm putting together a presentation based around these 3 components, but my recollection of the course is quite fuzzy.
If a third party is able to sniff and replay a message, and thus they can perform an action like turning off a pump or sensor a second time, which component would that fall under? Suppose they can't actually understand the message and don't have direct visibility of the effect, but they have some context like time of day and frequency.
I think it was integrity, because the recipient can't trust the information, but it also affects the availability of that sensor and could perhaps be confidentiality if they know when particular messages are sent.
Which section would you put this type of attack under?