Fun little story goes here, I used pseudonym when I first registered my Facebook account ~10 years ago or so. I later tried to change the handle to my real name, but Facebook didn't let me do that - moderators though my last name isn't real. So I ended up using a couple of names because of that.

Plus, I bet your googling doesn't work quite right, until you translate these names correctly.

I'm happy you found one, but there are 2 more to go. I'll give you a hint though:

* The one you're looking for is about computer security (that's why pseudonym worked fine)

* The book cover was done by the same artist

I almost revealed my second identity, but if you ever find the second name, please don't post it here.