The question I have is, how has internet security changed in the last decade? I have a text book from 1995 however I want to know what kind of things have been introduced since then to improve security, whether it be techniques, software, changes in operating systems, etc.

Just the list of the names of the changes/development would be great!
Haha, thanks to all that have helped so far. I know there are lots – so just the major breakthroughs would be great!!