This is dumb but it raises an important issue though, people SHOULD be aware of the fact that these are open.
It's not just webcams: www.shodan.io
is a search engine for open devices on the internet of things. Many are genuinely set up to be open as such -Public information directories and such. And many are not, people are blissfully unaware that they are making all this available to the world.
You have everything from webcams, printers all the way up to Company SCADA systems publicly exposed here.
Why am I posting this? Because I want outrage and alarm: The only way the internet is going to get safer and better is through awareness and if these systems become secured.
I remember a year back someone did a campaign to raise awareness through this, they pulled down the details of every open printer on the internet and set them all printing "you should really secure your printer"