Have to reply to this, and my response was covered a bit by your statement of "security up to par".
Nothing should be considered secure. All those bug bounties are to entice black hats, into giving up juicy pre-0day vulnerabilities.
So just because a device is up to date with security updates, we all must understand, there are countless bugs unknown, needing to be patched, and often, being discovered by those that will never tell, never disclose, never report, and only use them for nefarious purposes.
This is why security is nothing without monitoring.
And why nothing is ever "safe", only likely "more safe" due to a security update.
Consider everything that is network connected as compromised. Everything.