ShieldDesk Blog

Cybersecurity guides
for small businesses.

Plain English. No jargon. Written by a cybersecurity student who builds real tools.

Founder Story · Apr 13, 2026 · 8 min read
What I Learned Building My First Cybersecurity Tool as a Student
How I built a free email security checker using only HTML and Google's DNS API — and what it taught me about real-world security gaps in small businesses.
Read on Medium →
Email Security · Apr 30, 2026 · 7 min read
Why Your Small Business Email Can Be Spoofed Right Now (And How to Fix It in an Hour)
Most small businesses fail basic email security checks and don't know it. Here's how SPF, DMARC, and DKIM work — and how to fix all three in under an hour.
Read on MeetCyber →
Security Guide · Apr 7, 2026 · 7 min read
5 Cybersecurity Mistakes Small Businesses Make (That Hackers Love)
After checking hundreds of small business domains, here are the five most common security gaps that leave businesses wide open to attack — and how to close them.
Read on Medium →
AI & Open Source · Apr 30, 2026 · 10 min read
I Built an AI That Runs on $50 Android Phones — Here's What I Learned About Who AI Actually Serves
Every local AI tool requires 6-8GB RAM — locking out billions of people. Here's the technical story of building NanoMind: offline AI for 2GB RAM Android devices.
Read on Stackademic →
Coming Soon · Next week
How to Check if Your Business SSL Certificate Is About to Expire
An expired SSL certificate shows "Not Secure" to every visitor and tanks your credibility instantly. Here's how to check yours and set up alerts.