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Compared to what?

They seem to be okay w/ only HTTP ports being open on the server (80, 443). They "found that open ports can lead to cyber claims".

That's like saying that open bottles lead to alcoholism.

"Cyber claims" sounds like someone who doesn't have a clue what they are talking about.

But yeah putting it behind some kind of VPN is advisable if anything because of all the driveby nuisance attacks on ipv4.

Indeed.