How is cybersecurity today different than it was when it first emerged as a serious issue, and second, what do these differences mean for how cybersecurity experts (both academic researchers and professionals in the field) need to be working in community with one another, and why?

Compare pros and cons of at least two regulatory approaches discussed (e.g. Apple's "walled garden," self-regulation, legislation, etc.), and then, second, explain what mix of different approaches seems most hopeful to you, and why.