Cybersecurity marketing writing, at the level buyers in this industry actually read.

I'm Keegan Henckel-Miller. I write the blog posts, bylines, ebooks, and thought-leadership content that security and AppSec companies use to earn trust with a technical, skeptical audience — human-written, specialist-researched, and shipped on deadline.

Why this, not a generalist freelancer or an AI draft

500% increase in monthly inbound leads as Director of Marketing at Waratek, plus $1.6M in qualified pipeline in Q1 2025
22K → 600K+ annual blog traffic growth at Randori as Content Marketing Manager, through its acquisition by IBM
1 published Amazon ebook, credited alongside Randori co-founder David Wolpoff
4,024 LinkedIn followers in security/SaaS marketing — a built-in distribution channel for placed work

Who this is for

Security and AppSec vendors, MSSPs, and infra/dev-tool companies that need content a practitioner won't bounce off of: accurate threat framing, correct vocabulary, and a point of view — not keyword-stuffed filler. Work spans single bylines to fractional content leadership; see services & pricing.

Recent work

Browse the portfolio →