RichTechGuy

My name is Rich and I talk about technology and other nerdy things. Husband, Father, Tech Guy, CCIE 49450. #CiscoChampion

[RichTechGuy @richtechguy]

A short clip from my IP subnetting video talking about how 16 million IP addresses were allocated.

See the full video here: https://t.co/QLZC183Z0W

[RichTechGuy @richtechguy]

@gerald_langat @NetworkChuck I got some coffee.

[RichTechGuy @richtechguy]

Great to meet @NetworkChuck at Cisco Live!

[RichTechGuy @richtechguy]

This was fun. Thank you @CiscoLive

[CiscoLive @CiscoLive]

We asked our friends at #CiscoLive to rate our Cisco Live memes, and they did not disappoint 🙂‍↕️ Shoutout to our buds at @CiscoChampion for adding their ratings!

How would you rate our collection? Let us know below 👇

[RichTechGuy @richtechguy]

In 2010, I was introduced to FlexPod, a joint converged infrastructure project between Cisco and NetApp. I was the engineer in my company tasked to create the build process so that we could deliver at scale. I didn't know it at the time, but this rack lauched my career into what it is today.

[RichTechGuy @richtechguy]

Cisco CEO Chuck Robbins talking with Starbucks CEO Brian Niccol. Great comment by Chuck that CEOs across America are looking at their CISOs and thinking: Dear God, I'm trusting you with my entire organization.

[RichTechGuy @richtechguy]

Before the internet standardized on TCP/IP, there were a lot of competing routed protocols. We're about to see that again in quantum networks.

[David Bombal @davidbombal]

Quantum now on the main stage

Time to start learning and getting ready for a post quantum world

#sponsored #ciscolive @cisco

[RichTechGuy @richtechguy]

"The network is more powerful than the node." Chuck Robbins
#CiscoLive

[RichTechGuy @richtechguy]

Attending Cisco Live 2026 and need some continuing education credits for recertification? Visit the Capture the flag for a fun way to get CEs.
#CiscoLive #CiscoChampion

[RichTechGuy @richtechguy]

Looking to add AI to your home lab? Take a look at my new video where I go through the process of installing LLMs onto a Raspberry Pi 5.
https://t.co/nDMyBxDkwY

[International Cyber Digest @IntCyberDigest]

‼️🚨 BREAKING: A new npm supply-chain attack uses a dead-man's switch. The payload plants a watcher on your machine that nukes your home directory the second you revoke the GitHub token it stole from you.

The compromise happened today, across 42 official tanstack npm packages, 84 malicious versions in total. tanstack/react-router alone pulls more than 12 million weekly downloads.

The attacker forked TanStack's repository and pushed a single hidden commit. From there, they tricked TanStack's own release system into signing the malicious packages as if they were the real thing. To npm, and to anyone checking the cryptographic proof of origin (SLSA provenance), the poisoned versions looked 100% legitimate.

Maintainer Tanner Linsley confirmed the whole team had 2FA enabled. It didn't matter. This is the first documented npm worm in history that ships with a valid, signed certificate of authenticity, the same one defenders rely on to know a package wasn't tampered with.

[RichTechGuy @richtechguy]

Are you currently working towards a Cisco Security CCNP or CCIE? There are some big changes coming to the Security Core and Security Specialist exams, and they are coming fast. I have a new video on my channel reviewing the changes and going over the new topics covered on the exams getting major updates.
https://t.co/dTJpDCqqZR

[Mike Bales 🫡🇺🇸 @MikeBales]

UPS: “Your package is in your city, on a truck driven by Mike. It will arrive on your doorstep at 6:27 p.m. today.”

FedEx: “Your package is coming. You’ll get it when we get there.”

USPS: “What package?”

Amazon: “We are already inside your apartment. Check the bathroom.”

Facebook: “We know you were thinking about getting a toaster yesterday. Here are 20 ads for toaster ovens.”

[Learn with Cisco @LearningatCisco]

Network engineers in 2026: "Do I need to learn AI?" 🤔

Short answer: yes—but not from scratch.
Your networking fundamentals are the foundation. Now add automation, telemetry, and AI infrastructure skills on top.

Start here 👉 https://t.co/mGLF9cfUb6

#AINetworking

[RichTechGuy @richtechguy]

This is a great read and I liked this part:
"Everyday there is some AI-dude-bro (or gal) clawing for followers claiming end of cybersecurity, end of software engineering, or this breakthrough changes everything."

AI will not be the end of cybersecurity or software engineering. It will transform it, and require new skillsets for these job roles. In the end, the new, changed form may look completly different than what we know of these roles today, but it will not end these roles.

[Dave Kennedy @HackingDave]

Alright, I've stayed away from the Mythos stuff for a little bit. Going to comment on that, but AI as a whole.

First, this AI industry is absolutely insane. I feel like I'm back in the 90s/2000s with innovation, but it's not tempered or methodical - it's pure chaos.

Everyday there is some AI-dude-bro (or gal) clawing for followers claiming end of cybersecurity, end of software engineering, or this breakthrough changes everything. We're seeing the "streamer" effect of video games now exploding in every industry that hasn't been in whatever industry, but is now a AI-expert thus an expert in anything AI touches because they can prompt.

Largely it's not, but what it is doing is requiring us to understand what AI will do to virtually every industry in the future. I'm sitting here right now at a conference I'm presenting at, and I spoke with an individual which was like man... I'm just trying to get through this SAP implementation at my company, I don't even know where to start with AI at the moment.

We are still in the extreme early stages of what AI can do, and I think that's really the exciting part - we are at the infancy stages of this.

Most enterprise can't handle AI, as most companies couldn't handle agile workflow when it came out either, it took time, but eventually adopted.

I won't dive deep into the scalability of releasing AI to the masses based on compute, power, or subsidies because these are real hurdles we need to solve. As you can see with Claude's spike in popularity is causing them to have to dumb the model down upwards of 65% just to stay afloat (Claude is absolutely awful right now for coding - beware).

Mythos is cool, really cool - but it's not earth shattering as claimed. The potential here we are seeing a glimpse of what can actually happen though.

The ability to do extremely complex tasks, with insane context windows, and high-end reasoning. But, what we saw from other current frontier models including open LLMs, they were able to find the same issues, but had to be specifically targeted towards those code sections because of context limitations and complex task reasoning which was drastically improved in Mythos.

What does this mean? Basically. Nothing. It's a lot of marketing hype - but it does prove out that as these models become smarter, it will inevitably produce much better code, be able to work in mind blowing fashions that we haven't seen before - but it will all come down to cost. Right now Mythos is extremely expensive because of the compute needed, and we may solve that over time, but it's not there yet.

The subsidies right now means AI is not ready. Scale is our biggest bottleneck right now and until that's solved, the industry will not move as fast as it could.

What's particularly impressive is how the open models are starting to perform on par (or better) with the frontier models and become way more efficient without restrictions (turboquant) as an example.

Our ability to use near parity models on our own hardware will only continue to get better which is a huge threat for these companies. I at first looked at Cursor's implementation of Kimi as they were falling behind because it wasn't "their own model". That wasn't accurate, its that the open models are performing substantially better than from 6 months ago, and will soon be leading the charge or close to it.

What does this mean for cybersecurity? The industry is changing rapidly, and I absolutely freaking love it. We needed a swift kick in the ass in this industry that was largely stagnant for the past 10-15 years.

What used to be a handful of incredibly talented security researchers that knew systems internals, savants at reverse engineering and reading through millions of lines of ASM is now being afforded to the masses, but still has a long way to go.

The reason AI is so good at doing this stuff is because they paved the way, and will continue to do so in different ways. Not eliminated or removed, enhanced and better than ever. AI is single handedly the largest theft of plagiarism that has ever happened in human history. I just got a 10K check from Claude for ripping off my Metasploit book to train its model to be smarter actually :P

I am all for things that make the world a safer place. Our goal in cybersecurity is to fix the world, make it less harmful when using technology - we should be adopting this. Note that it's going to come with a ton of fluff, hype, doomsday predictions, people that are now AI exports or coding experts but have never written a line of code themselves. That's all to be expected if you have ever been to an RSA conference. AI will product meaningful change in an industry that needed it.

Cybersecurity is much more than bugs or defects, it's protecting against risk. AI is a new emerging risk, it's going to keep us insanely busy right now, and for the foreseeable future.

[NetworkChuck @NetworkChuck]

My take on Anthropic's new Mythos model:

Don't worry about it. It might be amazing, it might be disruptive.

But there's nothing you can do about it.

Ignore the hype, keep your head down and keep learning, growing and creating.

Adopt this: Relentless Optimism.

[Cisco Insider Champion @CiscoChampion]

If your meetings still feel…mid 😅

This episode of Cisco Champion Radio shows how Cisco is leveling things ALL the way up:

🤖 smarter AI
🎥 better video + audio
🔐 seamless + secure collab

🎧 Get into it: https://t.co/iPd5rJEen2

[NASA Artemis @NASAArtemis]

The eclipse from Orion.

On April 6, external cameras attached to the Orion spacecraft's solar array wings captured the Moon backlit by the Sun during a solar eclipse.

[Kubernetes @kubernetesio]

🚨 A high-vulnerability CVE (CVE-2026-4342) has been identified in ingress-nginx.

This vulnerability enables configuration injection and potential code execution on all versions below v1.13.9, v1.14.5, and v1.15.1.

As ingress-nginx is now EOL (End of Life), users are strongly encouraged to upgrade and migrate immediately.

Details: https://t.co/3tgfCAK8pw

[RichTechGuy @richtechguy]

LOL

[Waffle House @WaffleHouse]

nobody's been this far from a Waffle House before

[Kevin Roose @kevinroose]

NEWS: Anthropic's new model, Claude Mythos, is so powerful that it is not releasing it to the public.

Instead, it is starting a 40-company coalition, Project Glasswing, to allow cybersecurity defenders a head start in locking down critical software.

https://t.co/1ehWqYi4iy