Good networking devices, such as Wi-Fi Access Points and Switches can filter out rogue ICMPv6 Router Advertisements (usually called RA guard). Professional netw

Good networking devices, such as Wi-Fi Access Points and Switches can filter out rogue ICMPv6 Router Advertisements (usually called RA guard). Professional networks should filter these. This is very comparable to e.g. rogue DHCPv4 or DHCPv6 servers and DHCP spoofing (the protection is usually called DHCP snooping). In general, IPv6 is similarly secure as IPv4 or can be configured as such. In highly secure networks, Wi-Fi or other wireless is a no-no and everybody knows this. It is usually much easier to control access to all the physical locations. It isn't as easy to also have the same level of control in the parking lot before the building.