Dan Riehl is the Director of Services of The Powertech Group, the industry leader in IBM IBM i security technology. Dan has performed OS/400 security assessments for many of the largest corporations in the world. He regularly visits customer sites to perform these assessments and to help them understand and plan for fixing the holes in current security implementations.

Dan’s column "Security Central" appears regularly in IBM i NEWS Magazine, where he has been a Technical Editor and Author for 18 years. He is the Editor for IBM i Network Club Tech Systems Management Newsletter and regularly teaches classes and seminars on IBM i security and other technical topics.

Included among the award winning books that Dan has authored and co-authored are:

PowerTips for OS/400 Security

AS/400 PowerTools (Volume I & II)

Control Language Programming for the AS/400

The Desktop Guide to AS/400 Programmers' Tools

CL By Example .

.