What happens in such a hyper-individualistic, post-System world when organized criminals approach the employees of data repositories and use the typical approac

What happens in such a hyper-individualistic, post-System world when organized criminals approach the employees of data repositories and use the typical approaches of {payments, blackmail, threats} to directly retrieve, or install back-doors into, troves of user information? It is certainly not very nice to suspect that there may be great powers watching and manipulating the world, but real harm and manipulation also exist, and that's why we (historically) have security agencies. Now if they are not doing their job, or if the capabilities and funding they have far outweigh their accomplishments, then yes, we should curtail them. Or if they have become completely internally corrupt, and are providing no safety at all, then yes, perhaps they should be disbanded. But we would still need an alternative which we do trust (collectively, if not individually) to provide the same services, or people will just be exploited worse by malignant players who don't have even the pretence of moral behaviour. My line of thinking here might seem to be a conservative one of "don't rock the boat" - but I'm not necessarily proposing inaction/the status-quo; open source does a pretty good job of promoting trust in software where previously there was a large information disparity between developer and customer, for example, and I think that concept could (potentially) apply here too.