Hello Lhotka,
are there any expectations about a release date of your CSLA Security eBook so far?
You referenced on this book on page 118 of the Creating Business Objects book.
Maybe you have some draft written so far?
regards, Alex.
ps.: the forums icon selection is somehow funny... cheers! 
The actual sentence says "I'll discuss authentication and loading user indentity information ..."
and this is in the "Data Portal Configuration" ebook - chapter 5.
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