Reletter
Artwork for RockCyber Musings

AI and Cyber Geek

Platform
Substack
PricingOnly free issuesPublishesTwice weekly
Issues127Founded2 years agoLast Issue11 days ago
Active

Read this Newsletter

rockcybermusings.com
Artwork for RockCyber Musings

Latest Issues

Claude Code Skills: Put The Discipline In The File

Thanks for reading RockCyber Musings! Subscribe for free to receive new posts and support my work.

Share

Claude Code skills are how I stopped re-explaining the same discipline to an AI on every session. Last year Veracode tested code from...

11 days ago
1

Weekly Musings Top 10 AI Security Wrapup: Issue 40 May 22-May 28, 2026

Trump pulled the executive order. Anthropic shipped a model that finds vulnerabilities by the thousand. Threat actors poisoned developer AI assistants with invisible characters. The week of May 22 through 28, 2026, didn’t give CISOs a quiet...

15 days ago
1

AI Security Maturity Model: Your Score Is Fiction

Your AI security maturity score is probably inflated. Half of security organizations already run AI in production, and most can’t prove it’s governed. The SANS 2025 AI Survey reports that 50% of organizations use AI for security work today,...

18 days ago
9
2

Weekly Musings Top 10 AI Security Wrapup: Issue 39 May 15-May 21, 2026

Thanks for reading RockCyber Musings! Subscribe for free to receive new posts and support my work.

Share

The executive branch stalled. The supply chain bled. Frontier model builders started negotiating with central bankers. Trump tore up...

22 days ago
1
1

My Claude Code Harness Is Public. Don't Copy It.

Thanks for reading RockCyber Musings! Subscribe for free to receive new posts and support my work.

Share

I spent most of last month watching myself do the same dance every time I opened Claude Code. Each session ate 20-30 minutes up front...

25 days ago
12
3

Key Facts

Contact Information
Newsletter Author
Number of Subscribers
Find out how many people subscribe to this newsletter.

Audience Metrics

Subscribers, engagement, traffic and sponsorship for RockCyber Musings.

SubscribersEngagement71Monthly Web Visits
Accepts SponsorsEstimated Cost per Ad

Authors

The writers behind this newsletter.

  • Rock Lambros

    AI and Cyber Geek

  • Sabrina Caplis

    AI Governance, Risk, and Security Consultant at RockCyber.

  • Frequently Asked Questions

    How can I access the email archive for RockCyber Musings?

    You can find recent issues that have been published by RockCyber Musings on Reletter by scrolling up to where it says Latest Issues. Tap on the link for any of the most recent emails or hit More Issues to see older ones.

    How many subscribers does RockCyber Musings have?

    To see how many people subscribe to RockCyber Musings, simply upgrade your Reletter account. We provide readership numbers and lots of other stats for this newsletter so you can decide if it's worth reaching out to.

    How can I advertise in RockCyber Musings?

    Newsletter advertising can be extremely effective when it's done right. Before you pitch RockCyber Musings as a potential sponsor or partner, make sure that you've done your research and checked its newsletter stats with Reletter.

    Then, personalize one of our winning pitching templates and send it to the right person using the contact info provided.

    How much does it cost to sponsor a publication like RockCyber Musings?

    Newsletter ad rates (or CPM) vary depending on many factors, including industry, number of subscribers, open rate, ad placement and more.

    To find out how much an ad will cost, contact RockCyber Musings using the contact information provided and ask for a copy of their media kit.

    How can I find newsletters related to RockCyber Musings?

    Scroll up to where it says Related Newsletters to see other publications like RockCyber Musings. You can also search our email newsletter directory to discover other newsletters that cover the topics you're interested in.

    How do I contact RockCyber Musings?

    Reletter provides this newsletter's website URL above, where you will often find their contact information. We also provide links to associated social media accounts and pitching templates so you can reach out fast.