Security researcher recently discovered a heretofore unknown flaw in the Internet’s core DNS protocol. IT managers on Thursday to expect more security fixes aimed at mitigating the issue over the coming months. Security researcher: Expect more fixes to mitigate the issue in coming months over the next few months. Every second counts when it comes to mitigating cyberattacks and resolving network performance issues, experts say. Read this article by the author of this article, “Cybersecurity,” on CNN Tech Heroics.com/Heroes.”]