Earlier quoted context omitted.
I don't know if there's anything wrong with Sheildsup (other than my recollection of it being a pretty run of the mill tool for reporting open ports), but the guy who makes Shieldsup is, in my opinion, basically a charlatan. He writes loads and loads of technical-sounding blather on his website that is very transparently designed to make him look like an expert on security to people who don't know any better. He's ma…
FWIW, he’s been at it for about 20 years.
At least. I remember finding his site back in 2004 and it felt long in the tooth then. Complete with blink tags.