[donny@scyber ~]$ ls ./blog/

Writing

Have a look at my writing to see how I think and work.

about-me.md PINNED FEATURED

About Me

2025-07-26 • 5 min read •
Personal Career

I've been doing security for over a decade — network and endpoint defense, SIEMs, incident response, then cloud, infrastructure, and application security — and the through-line is a self-taught curiosity for taking systems apart. From SIEMs and firewalls to ... SIEMs and firewalls: built, backed up, destroyed, and rebuilt using code.

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my-lane-is-a-method.md NEW

My Lane Is a Method

2026-09-16 • 6 min read •
Personal Career

A security career with no obvious specialty, and what I found when I lined up the work instead of the job titles.

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vibe-coding-security.md

The Security Side of Vibe Coding: What AI-Generated Code Gets Wrong

2026-02-13 • 10 min read •
AI Security Vibe Coding DevSecOps

I use these tools every day, and I'm also a security professional. A field report on what AI-assisted coding gets wrong — missing authentication, agents with too much access, secrets in the wrong place — from my own code and the research.

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enterprise-devsecops-automation.md

Shift-left DevSecOps with GitHub Actions

2025-08-03 • 12 min read •
DevSecOps GitHub Actions Security

A GitHub Actions suite that scans only what changed, runs the right tools per language, and lands the findings in GitHub's Security tab — plus the details that trip people up when they wire it together.

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aws-vpc-ipam-solution.md

Hierarchical, Multi-Region AWS VPC IPAM with Terraform

2025-07-26 • 8 min read •
AWS Infrastructure Terraform

How I built hierarchical, multi-Region IP address management on AWS VPC IPAM with Terraform — 67 pools, cross-account sharing, and a Streamlit planning tool that does the subnet math for you.

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author_info.json

Donny Schreiber

Cybersecurity consultant at Amazon Web Services (AWS). I write about cloud security, DevSecOps, IaC, and the security side of AI.

AWS Security
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Topics

Personal DevSecOps Infrastructure Networking AWS AI Security
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Follow Along

I have a YouTube channel planned for tech, cybersecurity, and whatever else comes up. The videos are coming… eventually. Right now there are zero. The drumming channel has years of them.

  • @SchreiberDrumsdrums, from my (currently: dust-collecting) studio videos: many
  • @scybersectech, cybersecurity, etc. videos… eventually videos: 0
WATCH_THE_DRUMS() (opens in a new tab)

Or subscribe to the empty one (opens in a new tab) and wait with me.