Security hasn't gotten any worse than it's been. It's much more visible now and all systems are practically connected through APIs..
Lack of security knowledge is the problem I think. In fact most companies that are hacked don't know it and don't have the knowledge to detect and mitigate them.
Security was much worse in the beginning of 2000's with dial ups.
Also don't forget about social engineering...that's a bigger concern than physical hacks...