If on facebook/twitter etc you see an update or post from a freind/contact that looks like spam, i.e. looks like they are selling something for say a drugs company with a link to a website. And then you ask why they are posting that and they say they have no idea it was not them, how could/has their account been “hacked” so to speak. I.e. what has the user done to get infected, or is there a list of how it may of happened? And how if somehow some malware is abusing their account for spam postings can you restablish control of the account and ensure it doesn’t happen in future. Could it be a targeted attack i.e. target the users account perhaps password crack, or how else does malware infiltrate a SN account so they can post spam or other such rubbish?