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Palo Alto Networks confirms mystery zero day now exploited: No patch, no CVE
(www.thestack.technology)
This is a most excellent place for technology news and articles.
"urging customers to pull their management interfaces off the public internet or restrict them to known IP addresses."
Sounds more like pebkac and less of a big deal. Management interface should be in your management VLAN, plus I don't know another vendor that can touch them in terms of security features.