Crothers, Tim

Norbert Pohlmann is a founding member and Chairman of TeleTrusT, an organization dedicated to establishing cryptography standards, and serves on the management boards of several other security companies in Germany. Mr. Pohlmann is the recipient of two awards for security work from IT Services Magazine as well as the Aachen Prize for Innovation in Technology, and is a frequent conference speaker on security topics. This book is updated and adapted from his German-language bestseller, Firewall-Systeme, now in its fourth edition.
Tim Crothers, CCNA, CIW, MCSE, MCT, CNE, is the chief security