This is an old exploit, famously deployed by CDC boys (Cult of the Dead Cow)back in mid-90's, remote control.

With advancement of anti-malware etc firewall, the threat of such attack has been reduced.

However, the attack has re-surfaced with the emergence of social network with it complex programming tool etc, like FB. i.e. Firesheep, not only allow the attacker to have a remote view of what you do on your FB but also other stuff and your AV regardless of what brand cant detect it at all.

No.
With IPv6, soon even my toaster or fridge will have an IP.

The idea of interconnected home devices have came along way, as early as the 90's, big home product like Hoover already displaying concept product of internet connected washing machine, refrigerator even home cabinet. I saw the actual conceptual home of interconnected home appliance at Apcort Center in 1999. But back then, there was no such use or apps to make the concept into full fledged product.

So, if you're washing machine is online, has an IP, can be found on the net, chances are, it's open for attack. But of course, some security controls will be in place to reduce the threat surface.

Let's just retrospect the idea remotely hacking someone's handphone back in the 90's or early 2000, nearly impossible. But now, most smartphones are connected to the internet, has an IP...also other unsecured radio communication like Bluetooth, attacking one's mobile phone is no longer just a demo at security conference like Defcons or RSA, but something even a 12 yo can do.

only because PC peneration in Malaysia is quite low and programming isn't tought seriously in school until college level.