Obviously it is unsurprising that our profile data is used by others for reasons that we may or may not like. What is new is the technical ability to look at and process everyone's data simultaneously, and then use the picture that emerges in combination with targeted (and increasingly individualized) propaganda to meet social engineering objectives. And what is brand new, and newsworthy, is that this weird new technical ability is now far more accessible (to pretty much anyone who wants to harness it in service to whatever agenda) than it was prior to the data breach.

How do you protect yourself from a person who has been tricked into regarding you as their enemy, or from lies that you may come to believe are true because previously trustworthy sources of information have been compromised without your knowledge?