I'm in tech and I don't agree. Many of my company's products require that Enterprise "opens" a port on a firewall, in fact, we have an entire list of ports that need to be opened. It is an incredibly common practice and a necessity depending on how the firewall is initially configured. Also, any time data is "proxied through their infrastructure," which I'm not sure if you mean they are actually proxying data or accessing applications/compute (i.e. Cloud), you are 100% relying on that company's best practices and investment in their own security design. Now, if you talked to the same InfoSec teams for some of the companies that I work with, you'd realize that, well, that's not always the best or more secure option.
Equifax ring a bell? (NOT my customer)
When configuring a device that you don't trust for a wireless connection, you want to put that device on a separate SSID that is running NAT mode. This way, client devices receive IP addresses in an isolated network. Now - I'm no systems engineer, but as a sales guy I've paid attention over the years
FYI - This is what I did with my Arlo Pro camera system, the way they "protect" you is by creating a hidden SSID with their wireless router...unreal.
The article is incredibly eye opening - I attended RSA this week so security is fresh on the mind. It is amazing with what is possible out there and how creative hackers have become. The truth here is that if someone wants access to your information and it is being passed wirelessly, hope you've got the right amount of encryption running, because chances are that information is easily accessible. They won't need a silly aquarium computer to gain access.
I run nearly all my traffic through a VPN, which is sitting behind an Enterprise firewall with some pretty dope Zero Day exploit malware and IDS/IPS technology. That being said - I still am concerned about data privacy because it is so difficult to maintain. One cool thing out there - there are more and more consumer options for VPN proxies, they started out to hide consumers information from the movie and music industries, but now are being used for public protection when surfing the net at Starbucks.
Also! A free technology solution for all of you that costs my customers a lot of money - point your DNS at Cisco Umbrella for free!
https://deployment-umbrella.readme.io/docs/point-your-dns-to-cisco