I don&#x27;t think anyone was claiming what you seem to be arguing against; the point was merely that even the accidental and minimal security brought on by being unable to externally address internal networks is going away with IPv6. It was never &quot;real&quot; security, but it did make it materially harder to breach into someone&#x27;s network.<p>Of course it&#x27;s also going away with all the IoT things actively reaching out, since every external connection made without care is also an avenue for attack. (&quot;Oh, you want your firmware update little camera? Have I got an unsigned blob for you! You&#x27;re gonna love this update.&quot;)