What do you think about data security these days? Sony got hacked very hard. I don't want to discuss if Sony has made huge mistakes or not.
My Home-Network and all the pc's are secured that way an experienced user will be able to secure it (Virusscanner, strong passwords, etc.).
My personal concern is that even if you "know" a lot of prgramming, etc, you "know nothing". Build in backdoors in the OS you use, services collecting data and many other things we all don't know. What if the build in network card can communicte without our knowledge (via firmware). Undocumented features. What if my fridge sends data I don't know via the power net? What if the hw/chip manufatures add funktions we never get to know?
I have no real fears but I do think that there is "more" behind it. What do you think? My predict: In 5-10 years we will still use the internet but much less because of several things (hackiing, etc.) in the near future.