The Terminal Is a Conversation
My first Linux distribution no longer exists. I mention that because it lands two points at once: Linux is old enough to have history, and the skills transfer anyway...
Linux
Latest
The Map and the Floor
After years of working, teaching, writing in this field, the pattern I see most in newcomers is not lack of ability. It is freezing...
Practice at Home the Way You Preach at Work
I spend my working hours telling teams how to do security well. Segment the network. Write the change down. Model the threat before you build the control. Then I go home, and if I am honest with myself, the temptation is to cut every one of those corners because it is "just the lab."
The Outermost Ring: Enterprise and Cloud Security — and the End of the Series
This installment goes in a different direction. Where the last post zoomed all the way in — past the running host, past the alert, down to a single line of source...stepping away from individual controls entirely and asks about the distributed, multi-platform enterprise the cloud produced.
Every Seat in the SOC: The Incident Response and Investigation Labs in the Cybersecurity Architect's Handbook, Second Edition
This installment does something different. Every domain we've covered so far — even the unglamorous hygiene loop — was, at bottom, an attempt to keep the bad day from arriving. This one starts the morning after it did...
Amazon
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Book Review: The Ultimate Ubuntu Handbook — A 24.04 Field Guide That Will Outlive 24.04
My lab runs Debian 13 as the primary environment, so when a 356-page Ubuntu book landed on my desk, my first instinct was to skim it, nod politely... Instead I read the whole thing — and I'm giving it five stars...
The Unglamorous Loop That Decides Everything: Inside the Vulnerability and Configuration Management Labs
I've been working through the second edition of the Cybersecurity Architect's Handbook's "secret menu" one domain at a time...the controls that still mean something after everything else has fallen. This installment does something different...it looks down at the ground all of them are standing on.
The Innermost Ring: Hands-On Identity and Encryption Labs from the Cybersecurity Architect's Handbook, Second Edition
Every control we design as architects ultimately serves one of two questions. Who is allowed to do what — and is the data still protected ... Access control answers the first. Data protection answers the second. Together they form the innermost ring of a defense-in-depth architecture...
Many Calculations Before the Battle: Inside the Threat Modeling Labs of the Cybersecurity Architect's Handbook
In the last post I gave you the tour — the foundational labs, the eight operational categories...So let's start where the whole discipline starts: Category 1, Threat Modeling and Risk Assessment.
Book
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It's Official: Cybersecurity Architect's Handbook, Second Edition Is Now Available for Pre-Order!
The Second Edition of the Cybersecurity Architect's Handbook: An Architect's Guide to Designing, Building, and Defending the Modern Enterprise is now available for pre-order on Amazon.
AI
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Insights and Reflections "Deep Dive"
This "Deep Dive," generated through AI in a podcast style, provides a review of the main themes and important ideas presented in the "Cybersecurity Architect's Handbook."