Reviews

The best Windows security course I've attended in 25 years of administering Windows environments. Every time I pick up one of my GCWN books, I learn something new that's immediately applicable to my current situation. A must-have course for any system administrator who is serious about securing their environment.
Armond Rouillard
NES Associates
SEC505 is the gold standard of Windows security training.
Alexander Kotkov
EY
You have the best instructors available. Other training never comes close and is a waste of money.
Steve Sauro
McDermott Will and Emery
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