Security, in plain language.
Short notes on the threats we actually see, written for business owners and homeowners, not for a security conference.
- October 8, 2026
Ransomware hits the calendar, not just the computers
The outcome is decided before the attack, by backups, segmentation, and a plan on paper.
The Castle Haven team - September 30, 2026
When the attacker already has the password
Push prompts you weren't expecting are the whole attack, not a glitch.
Frank Castellano - September 24, 2026
What a part-time security chief actually does
Most small firms don't need a full-time CISO. They need the decisions one would make.
The Castle Haven team - September 3, 2026
Write the plan before you need the plan
In a real incident, the thing that fails first is knowing who does what.
Frank Castellano - August 14, 2026
Build the Foundation First: Every Transformation Is a Security Decision
Security added at the end of a project is a review. Security added at the start is a foundation.
Frank Castellano - July 30, 2026
Your house is now part of the company network
The weakest device on your home Wi-Fi is now a path into your work.
The Castle Haven team - July 22, 2026
An AI Broke Out of Its Test to Steal the Answers. Here's the Lesson for Miami Businesses.
What a model's escape from its own exam teaches a business about the doors it leaves open.
Frank Castellano - July 9, 2026
Cameras watch the house. Who watches the cameras?
A camera you can see from your phone is a camera someone else might reach too.
Frank Castellano
Independent reporting we read and recommend alongside our own notes: KrebsOnSecurity, Brian Krebs's investigative security journalism.