---
title: "Kerry Kier (@kkier) | Hashnode"
description: "Systems engineer working on public safety infrastructure, emergency communications, and where AI actually belongs."
url: "https://hashnode.com/@kkier"
---

@kkier

# Kerry Kier

@kkier · Sacramento, USA · Joined April 2026

Systems engineer working on public safety infrastructure, emergency communications, and where AI actually belongs.

[Website](https://theknowngood.com/)

## Comments

[After running this i learmned a lot more on how to approach this and now with artifacts avaiible as well as having it attached to my internal git with all the documents and instructions made the next hardening much easier and claude was able to do it with CVP entitlement with Mythos 5.1 a lot faster and mythos before i started even stated it did a full scan oin the server to see if that much was even needed. I have a global prompt that does not agree with me and doesnt try to appease but will go thorugh and think of ouitcomes before it answers as well as some other controls, becuase i got tired of it telling me i was right all the time when i was clearly wrong.](https://hashnode.com/posts/codex-security-hardening/6ae263a92524d51eeb44811c/comment/6ae2d563fe0cc0a6810a0696#reply-6ae374e5613cb51b162fc28b)

Reply · Article · Oct 29 · [I Told Codex to Test Everything. It Believed Me.](https://hashnode.com/posts/codex-security-hardening/6ae263a92524d51eeb44811c)

[You nailed this on the head, I shoud have gave it more controls, becuase ultimately when claude looked it over it came back and said basically, you are testing and hardening based on foregn giovernments trying to compromise the site and in reality, those people are not attacking a independant book webiste. Now what I have done is i have an agent that monitors CVE's and KEV's and as soon as one is relaeased (there is an hourly check for this) it tells the maintence and security subagents to investigate and supply a report via email with the reocommendation and the ability for me to either approve or instracut via email. So i figured this along with monthly maintenance on the server shoudl have most of the basis covered. I also run this site and one of my others on my own Infrastruture at home and putit behind cloudfalre so i did not have to open up ports on the firewall.](https://hashnode.com/posts/codex-security-hardening/6ae263a92524d51eeb44811c/comment/6ae2f581055718c347a2cd1e#reply-6ae37402d02725a6dfce97b8)

Reply · Article · Oct 29 · 1 · [I Told Codex to Test Everything. It Believed Me.](https://hashnode.com/posts/codex-security-hardening/6ae263a92524d51eeb44811c)

[I am not a develper and it shows, I am a sys engineer and build infrastructure so this was a large part of not knowing. I also think a small part was the fact i was using Daybreak with some Easing of cyber controls so it worked a bit more than a standard model. As for the model change i learned rthe hard way never to do this, and you are right i dont know if it was the OP50/51 rounds or the model that caused the issue, but apples endpoint security part was the ultiimate block. I could have taken a different direction and not used the enpoint piece of it but i would have lost the past 2 weeks of work and would have had to start over, in in a session that ran for a total of 14+ Days of actual agent work, would have been a nightmare.](https://hashnode.com/posts/codex-security-hardening/6ae263a92524d51eeb44811c/comment/6ae34f9ccabb70c219e8bb46#reply-6ae372ec951d59945e956bdb)

Reply · Article · Oct 29 · [I Told Codex to Test Everything. It Believed Me.](https://hashnode.com/posts/codex-security-hardening/6ae263a92524d51eeb44811c)

[Hi Joel, Thanks for the feedback. If yo want to shoot me a DM we can discuss more if you want no problems on this side.](https://hashnode.com/posts/i-handed-claude-code-the-keys-turns-out-i-m-not-the-only-one-using-them/6a31d105b58dc64183a398de/comment/6a320557ef147aecc73c490d#reply-6a36a738722c96c9a7d7f1af)

Reply · Article · Jun 20 · [I Handed Claude Code the Keys. Turns Out I'm Not the Only One Using Them.](https://hashnode.com/posts/i-handed-claude-code-the-keys-turns-out-i-m-not-the-only-one-using-them/6a31d105b58dc64183a398de)