Yes, it can be scary knowing that people can just hack into your computer and your account. Nothing is really safe and secure and there is no anonymity. People think they are being secret or anonymous but there is always a way to be tracked. Whatever you do online is always there and can never be erased.
I used to worry about the lack of anonymity in the Digital Age, but I don't anymore. The reason I do not worry is because I don't put stuff on the Internet that would bother me if people knew. I rarely frequent Facebook or Twitter and I have never been happier!