Individually, computers today are more secure than they've ever been.
But there are zillions more computers, doing more things, with more interconnections than ever before. So the problems are compounded and I think the situation is worse overall.
> * Individually, computers today are more secure than they've ever been.*
Unfortunately, that only holds if you take the view that IoT appliance != computer.
Because let's be honest - those things are dangerous to general network hygiene and wellbeing.
Those were people just messing around. Annoying and harmful to your local machine certainly, but the harm that was caused was localized.
Security vulnerabilities are now industrialized, with large-scale public attacks and widespread silent compromises used to gather and sell your information for profit. The situation is still bad, it's just bad in a different way.