[Dylan16807]

I don't understand what you're replying to. Physical access is a great way to bypass network security, but it has nothing to do with websites.

[TeMPOraL]

"Exploiting device across network".

Security doesn't exist in isolation. AKA. there's always a way.

[Dylan16807]

If you assume a specific target, there is always a way to get to them.

If you're talking about making a browser secure against internet-based attacks, there is not always a way. This type of security is merely extremely, overwhelmingly difficult.