And yet their browser probably has unpatched vulnerabilities... Essentially, if someone wants to hack your system they will, whether it's patching your routers

And yet their browser probably has unpatched vulnerabilities... Essentially, if someone wants to hack your system they will, whether it's patching your routers firmware, etc. If Iran can't keep stuxnet out of airgapped systems, you're not going to keep any serious actors out of your systems connected to the internet.