An increase of technology brings a decrease of privacy. This can be good but it can also be bad. 
For instance, a criminal may have a harder time picking up and moving to a different state and creating a new identity. The way everything is computerized and networked together it probably wouldn’t take long to figure out that a social security number was being re-used. Of course, that may not be foolproof but you get the idea.
On the other hand, if a battered spouse wanted to get away from an abusive partner and move to a new city they may have a hard time of it, also. I imagine even something like the witness protection program can be compromised if someone is caught in the background of a teenager’s selfie. 
As it is, many of us walk around with the potential of being tracked. Twenty-four hours a day. It doesn’t bother most of us because we’re not doing anything worth tracking. That goes for our online activities also. At the moment, the biggest fear I have is searching for a children’s toy or romance novel and having Amazon decide that’s all I’m interested in.
Many methods of keeping tabs on us would be introduced to us as handy things. Handy, like having a device contain all your medical history (if you’re in an accident the doctors will have it!), all your financial information (you can pay for anything without carrying around a wallet!), personal information (still no wallet!), and what have you. 
Mistakes, however, can be made. If we’re always tracked, always on camera, always having a bank of computers scrolling through facial recognition software, what are the chances of errors occuring and the wrong person being picked up? Maybe having your medical history looked at by a prospective employer (bribery will probably still exist). And then there’s just the plain simple fact of knowing that wherever you are, whenever you were there, whatever you bought, there’s a record of it. 
Most of us will take this in stride for the convenience and because it’s voluntary. There will be people who don’t care for this very much and they will be considered the loonies.
Pluck someone from, say, 1947, and bring them to the present and introduce them to all this technology and tell them that, when they cross the street, a camera will see it. That when they buy something from a drug store it will be remembered. How would they react to that?
These are things I wonder about. I wonder too much, really. Luckily, this particular thought is plot dependent so I’m willing to spend less time worrying about it than the technology.
What I have to keep in mind is that putting the words down to paper (or screen, if you will) is the important bit. After all, there will be plenty of time to constantly re-edit after the words are placed.