Cybersecurity Insights From Two Decades in the Field

It’s post-third coffee, and here I sit, at a (sit-stand!) desk, fingers twitching to regale you all with some stories and insights I’ve gathered over a couple decades sounding out the depth of the cybersea. Begun in 1993 as a network admin — yes, in the days of multiplexing voice and data over PSTN (those were the days). But what I’ve seen since then has been nothing short of miraculous, with tech transforming from boxy routers that sounded like plane engines to AI-powered tools that — let’s face it — I’d rather approach with above-average skepticism.

But here’s the thing: experience is the best fire-wall. You can’t just rest on buzzwords or shiny products. You do have to get your hands dirty (and sometimes, by God, literally), and let’s be real, sometimes even fail a bit to wake the hell up. Allow me to share with you some nuggets from my personal experience, opinion and lessons that will eventually make you reconsider the posture of your cyber security.

The Remedy Fighting the Slammer Worm A Wake-Up Call

In 2003, the Slammer worm was a freight train. I was neck-deep managing a network responsible for critical infrastructure, and I recall watching traffic charts go through the roof at an absolutely crazy rate. No one was really prepared. The worm went so fast that is was almost like a kitchen grease fire — by the time you realized it had caught, it was going everywhere.

That moment taught me an important lesson: patching is not optional. Not simply as good practice, but because if you drag your feet, the bad guys have already dragged theirs all over your turf. I yell now at clients (and often) that patching schedules are to be treated on the same level as breathing, i.e., automatic, continuous and vital.

Zero-Trust Architecture More Than Just a Buzzword

Fast forward to last year. I assisted three banks (yup, three) with their zero-trust architecture. I see “zero-trust” bandied about like the newest magic Security Fairy. But this is what I found: Zero-trust is only as good as what you do with it.

Zero-trust calls for not trusting anyone or any device at all — even if they are inside your corporate network. Sounds harsh? Maybe. But if you’re still depending solely on firewalls to keep bad actors out, the reality is that your perimeter is nowhere near solid. Remember:

• Zero-trust is not one product. It’s a policy mentality embedded into identity, devices, and network segmentation.
• MFA must be a requirement. No second chances.
• Micro-segmentation limits the spread of breaches — think of it as firebreaks in a forest.

Banks were paranoid about their old gear, but newfangled zero-trust principles helped them to quarantine sensitive systems safely while still allowing business processes to happen.

DefCon and the Hardware Hacking Village They’re Still Buzzing

Landed back from DefCon — and WOW, the hardware hacking village was mind-bending. It’s a type of place where nostalgia bumps against bleeding-edge tech. All kinds of things got broken — from antique cash registries to actual IoT devices (spoiler: no, there’s no security there).

Watching hardware being hacked was a nice reminder of why cybersecurity isn’t confined just to software patches and firewalls. Your servers, your routers, and yes, the little gizmos you slap down on desks can all be vectors of attack.

Big takeaway: A mix of physical security and cyber defenses is a must. That includes controlling access to USB devices, securing device firmware, and keeping on eye on your supply chain. Don’t overlook the “hardware side” of security — it is often the most vulnerable.

Password Policies My Never-Ending Rant

Alright, enough nostalgia—let’s talk passwords. There’s so many companies that are consumed with foolish password policies that don’t work. Here’s what I think about all that– good passwords are important, but making users change them every 30 days (or making them impossibly complex) isn’t. People will just write down passwords on sticky notes or throw them away anyway.

What does work?

• Teach about using passphrases instead of nonsense gobbletygook.
• Use MFA religiously.
• Enable password vaults/management tools across the enterprise.

Truly, it is if we rely on antiquated password rotation policies that the good people here liken to trying to put out a fire by blowing on it #noteffective #crazydangerous

A Bit About Me and How It Informs My Opinions Today

I had to use them while working desktop support when I was earning my stripes as a network admin, after which — and you can bet this — I’ve come to love layered security. When we thought about networking back then, it was simple: connect, route, rinse and repeat. But, in today’s wired world, cluelessly plugging things in without checking them is like leaving your car’s engine running, keys inside and doors unlocked.

After seeing worms such as Slammer, waves of phishing attacks, ransomware outbreaks — I’ve seen what kind of havoc adversaries can inflict when we fail to do the basics.

And y’know what the joke is? Even now, as the head of my own cybersecurity consulting firm, I screw up. I once left an experimental server open overnight (a mistake, I know) and it was heavily scanned. My clients forgive, I don’t.

Quick Take Your Cybersecurity Cheat Sheet for the Holidays

• Patch and update continuously — automate when you can.
• MFA is your friend—use it.
• Don’t trust a device or a user by default.
• Physical and hardware security really are just as important as software defenses.
• Forget about complex password rules — focus on passphrases and managers.
• Monitor and slice and dice your network just the way a professional chef chops veggies — precise and intentional.

Why I’m Cynical About AI-Powered Security Products

This “AI-powered” security bullshit This trend I find most fascinatingly irritating at the same time is the whole ‘AI-enabled’ security nonsense. Yes, machine learning is a powerful tool to detect anomalies — but A.I. is not magic. It’s a tool — as good as the data it was trained on, and the people interpreting its output. Serving to hyperbolize are companies that market AI-based products. But I’ve seen too many situations where users are inclined to blindly trust an AI alert or, worse, have no comprehension of false positives, resulting in alert fatigue.

Bottom line? Use AI, but don’t throw away your body of knowledge. Basic hygiene such as firewalls, patching and zero-trust should still be your first-line defenses.

Final Thoughts From My Desk

If there’s one message you’ll remember from this rambling, coffee-driven blog, this is it: Cyber defenders need to get into the real world, not just the theory or the latest whiz-bang tech. From those days managing muxes over PSTN, to today, helping banks rethink zero-trust, the basics remain. You are only as secure as your weakest link, and most often that is human error or human complacency.

So, gear up. Lock down your networks, patch religiously, nail physical security, and think of zero-trust not just as a buzzword, but as a philosophy. And hey, if you do all of that and still get hacked, don’t forget: everyone’s human, and a little pickup never hurt anyone. The important thing is how quickly you rise and learn.

That’s my story so far. Now, on to another coffee before the next security struggle!